25771723404 has 48 divisors (see below), whose sum is σ = 68941463808. Its totient is φ = 7340113728.

The previous prime is 25771723381. The next prime is 25771723477. The reversal of 25771723404 is 40432717752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457294 + ... + 510549.

It is an arithmetic number, because the mean of its divisors is an integer number (1436280496).

Almost surely, 2^25771723404 is an apocalyptic number.

It is an amenable number.

25771723404 is an abundant number, since it is smaller than the sum of its proper divisors (43169740404).

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

25771723404 is a wasteful number, since it uses less digits than its factorization.

25771723404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968174 (or 968172 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 25771723404 in words is "twenty-five billion, seven hundred seventy-one million, seven hundred twenty-three thousand, four hundred four".