25428447276 has 24 divisors (see below), whose sum is σ = 59364706800. Its totient is φ = 8471625792.

The previous prime is 25428447259. The next prime is 25428447301. The reversal of 25428447276 is 67274482452.

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, 541951 + ... + 586998.

It is an arithmetic number, because the mean of its divisors is an integer number (2473529450).

Almost surely, 2^25428447276 is an apocalyptic number.

It is an amenable number.

25428447276 is an abundant number, since it is smaller than the sum of its proper divisors (33936259524).

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

25428447276 is a wasteful number, since it uses less digits than its factorization.

25428447276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130833 (or 1130831 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 51.

The spelling of 25428447276 in words is "twenty-five billion, four hundred twenty-eight million, four hundred forty-seven thousand, two hundred seventy-six".