25368642028 has 48 divisors (see below), whose sum is σ = 46600759296. Its totient is φ = 12060931520.

The previous prime is 25368641993. The next prime is 25368642031. The reversal of 25368642028 is 82024686352.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13557933 + ... + 13559803.

It is an arithmetic number, because the mean of its divisors is an integer number (970849152).

Almost surely, 2^25368642028 is an apocalyptic number.

It is an amenable number.

25368642028 is a deficient number, since it is larger than the sum of its proper divisors (21232117268).

25368642028 is a wasteful number, since it uses less digits than its factorization.

25368642028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 25368642028 in words is "twenty-five billion, three hundred sixty-eight million, six hundred forty-two thousand, twenty-eight".