25710628268 has 48 divisors (see below), whose sum is σ = 49516354944. Its totient is φ = 11606749440.

The previous prime is 25710628267. The next prime is 25710628271. The reversal of 25710628268 is 86282601752.

It is a super-2 number, since 2×25710628268² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (25710628261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6990446 + ... + 6994122.

It is an arithmetic number, because the mean of its divisors is an integer number (1031590728).

Almost surely, 2^25710628268 is an apocalyptic number.

It is an amenable number.

25710628268 is a deficient number, since it is larger than the sum of its proper divisors (23805726676).

25710628268 is a wasteful number, since it uses less digits than its factorization.

25710628268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602 (or 6600 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 25710628268 in words is "twenty-five billion, seven hundred ten million, six hundred twenty-eight thousand, two hundred sixty-eight".