25775267788 has 12 divisors (see below), whose sum is σ = 46206882792. Its totient is φ = 12573301280.

The previous prime is 25775267701. The next prime is 25775267809. The reversal of 25775267788 is 88776257752.

It is a super-2 number, since 2×25775267788² (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 3 ways as a sum of consecutive naturals, for example, 78582970 + ... + 78583297.

It is an arithmetic number, because the mean of its divisors is an integer number (3850573566).

Almost surely, 2^25775267788 is an apocalyptic number.

It is an amenable number.

25775267788 is a deficient number, since it is larger than the sum of its proper divisors (20431615004).

25775267788 is a wasteful number, since it uses less digits than its factorization.

25775267788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157166312 (or 157166310 counting only the distinct ones).

The product of its digits is 92198400, while the sum is 64.

The spelling of 25775267788 in words is "twenty-five billion, seven hundred seventy-five million, two hundred sixty-seven thousand, seven hundred eighty-eight".