25712996346 has 64 divisors (see below), whose sum is σ = 57555993600. Its totient is φ = 8508736368.

The previous prime is 25712996317. The next prime is 25712996347. The reversal of 25712996346 is 64369921752.

25712996346 is a `hidden beast` number, since 2 + 5 + 7 + 1 + 299 + 6 + 346 = 666.

It is a super-2 number, since 2×25712996346² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25712996292 and 25712996301.

It is not an unprimeable number, because it can be changed into a prime (25712996347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10125945 + ... + 10128483.

It is an arithmetic number, because the mean of its divisors is an integer number (899312400).

Almost surely, 2^25712996346 is an apocalyptic number.

25712996346 is an abundant number, since it is smaller than the sum of its proper divisors (31842997254).

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

25712996346 is a wasteful number, since it uses less digits than its factorization.

25712996346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840 (or 3834 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 25712996346 in words is "twenty-five billion, seven hundred twelve million, nine hundred ninety-six thousand, three hundred forty-six".