25780873256622 has 384 divisors, whose sum is σ = 66668684359680. Its totient is φ = 7115765760000.

The previous prime is 25780873256609. The next prime is 25780873256629. The reversal of 25780873256622 is 22665237808752.

25780873256622 is a `hidden beast` number, since 2 + 578 + 0 + 8 + 7 + 3 + 2 + 56 + 6 + 2 + 2 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25780873256622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25780873256629) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16102980622 + ... + 16102982222.

It is an arithmetic number, because the mean of its divisors is an integer number (173616365520).

Almost surely, 2^{25780873256622} is an apocalyptic number.

25780873256622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25780873256622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33334342179840).

25780873256622 is an abundant number, since it is smaller than the sum of its proper divisors (40887811103058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25780873256622 is a wasteful number, since it uses less digits than its factorization.

25780873256622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240 (or 3237 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 63.

The spelling of 25780873256622 in words is "twenty-five trillion, seven hundred eighty billion, eight hundred seventy-three million, two hundred fifty-six thousand, six hundred twenty-two".