25832778028 has 6 divisors (see below), whose sum is σ = 45207361556. Its totient is φ = 12916389012.

The previous prime is 25832777977. The next prime is 25832778061. The reversal of 25832778028 is 82087723852.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3229097250 + ... + 3229097257.

Almost surely, 2^25832778028 is an apocalyptic number.

It is an amenable number.

25832778028 is a deficient number, since it is larger than the sum of its proper divisors (19374583528).

25832778028 is a wasteful number, since it uses less digits than its factorization.

25832778028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458194511 (or 6458194509 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 25832778028 in words is "twenty-five billion, eight hundred thirty-two million, seven hundred seventy-eight thousand, twenty-eight".