25394962511016 has 192 divisors, whose sum is σ = 84664677926400. Its totient is φ = 6713967947904.

The previous prime is 25394962510987. The next prime is 25394962511029. The reversal of 25394962511016 is 61011526949352.

It is a happy number.

25394962511016 is a `hidden beast` number, since 2 + 5 + 3 + 9 + 4 + 9 + 625 + 1 + 1 + 0 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30424726 + ... + 31248261.

It is an arithmetic number, because the mean of its divisors is an integer number (440961864200).

Almost surely, 2^{25394962511016} is an apocalyptic number.

It is an amenable number.

25394962511016 is an abundant number, since it is smaller than the sum of its proper divisors (59269715415384).

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

25394962511016 is a wasteful number, since it uses less digits than its factorization.

25394962511016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61673068 (or 61673061 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 25394962511016 in words is "twenty-five trillion, three hundred ninety-four billion, nine hundred sixty-two million, five hundred eleven thousand, sixteen".