25492913317872 has 3360 divisors, whose sum is σ = 109181283061760. Its totient is φ = 5587074662400.

The previous prime is 25492913317849. The next prime is 25492913317889. The reversal of 25492913317872 is 27871331929452.

It is a happy number.

25492913317872 is a `hidden beast` number, since 2 + 5 + 4 + 9 + 291 + 331 + 7 + 8 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 671 ways as a sum of consecutive naturals, for example, 75646626888 + ... + 75646627224.

Almost surely, 2^{25492913317872} is an apocalyptic number.

25492913317872 is a gapful number since it is divisible by the number (22) 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 25492913317872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54590641530880).

25492913317872 is an abundant number, since it is smaller than the sum of its proper divisors (83688369743888).

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

25492913317872 is a wasteful number, since it uses less digits than its factorization.

25492913317872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 423 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 25492913317872 in words is "twenty-five trillion, four hundred ninety-two billion, nine hundred thirteen million, three hundred seventeen thousand, eight hundred seventy-two".