25049786212640 has 384 divisors, whose sum is σ = 71407140876288. Its totient is φ = 8118601666560.

The previous prime is 25049786212637. The next prime is 25049786212681. The reversal of 25049786212640 is 4621268794052.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1160399927 + ... + 1160421513.

It is an arithmetic number, because the mean of its divisors is an integer number (185956096032).

Almost surely, 2^{25049786212640} is an apocalyptic number.

25049786212640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25049786212640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35703570438144).

25049786212640 is an abundant number, since it is smaller than the sum of its proper divisors (46357354663648).

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

25049786212640 is a wasteful number, since it uses less digits than its factorization.

25049786212640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22160 (or 22152 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 25049786212640 in words is "twenty-five trillion, forty-nine billion, seven hundred eighty-six million, two hundred twelve thousand, six hundred forty".