25428197076 has 24 divisors (see below), whose sum is σ = 59336690784. Its totient is φ = 8475461280.

The previous prime is 25428197063. The next prime is 25428197087. The reversal of 25428197076 is 67079182452.

It is a happy number.

It is a congruent number.

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, 119986 + ... + 255446.

It is an arithmetic number, because the mean of its divisors is an integer number (2472362116).

Almost surely, 2^25428197076 is an apocalyptic number.

It is an amenable number.

25428197076 is an abundant number, since it is smaller than the sum of its proper divisors (33908493708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25428197076 is a wasteful number, since it uses less digits than its factorization.

25428197076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151111 (or 151109 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 25428197076 in words is "twenty-five billion, four hundred twenty-eight million, one hundred ninety-seven thousand, seventy-six".