25180737968 has 40 divisors (see below), whose sum is σ = 49569669600. Its totient is φ = 12389359104.

The previous prime is 25180737941. The next prime is 25180737973. The reversal of 25180737968 is 86973708152.

It is a super-2 number, since 2×25180737968² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488198 + ... + 537306.

It is an arithmetic number, because the mean of its divisors is an integer number (1239241740).

Almost surely, 2^25180737968 is an apocalyptic number.

It is an amenable number.

25180737968 is a deficient number, since it is larger than the sum of its proper divisors (24388931632).

25180737968 is a wasteful number, since it uses less digits than its factorization.

25180737968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629 (or 49623 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 25180737968 in words is "twenty-five billion, one hundred eighty million, seven hundred thirty-seven thousand, nine hundred sixty-eight".