25260983725978 has 192 divisors, whose sum is σ = 55433135116800. Its totient is φ = 8460836415360.

The previous prime is 25260983725937. The next prime is 25260983725981. The reversal of 25260983725978 is 87952738906252.

It is a self number, because there is not a number n which added to its sum of digits gives 25260983725978.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14905701 + ... + 16513687.

It is an arithmetic number, because the mean of its divisors is an integer number (288714245400).

Almost surely, 2^{25260983725978} is an apocalyptic number.

25260983725978 is an abundant number, since it is smaller than the sum of its proper divisors (30172151390822).

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

25260983725978 is a wasteful number, since it uses less digits than its factorization.

25260983725978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608105 (or 1608098 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 73.

The spelling of 25260983725978 in words is "twenty-five trillion, two hundred sixty billion, nine hundred eighty-three million, seven hundred twenty-five thousand, nine hundred seventy-eight".