25430335464 has 32 divisors (see below), whose sum is σ = 63965884320. Its totient is φ = 8424772416.

The previous prime is 25430335453. The next prime is 25430335537. The reversal of 25430335464 is 46453303452.

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, 3246387 + ... + 3254210.

It is an arithmetic number, because the mean of its divisors is an integer number (1998933885).

Almost surely, 2^25430335464 is an apocalyptic number.

25430335464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25430335464 is an abundant number, since it is smaller than the sum of its proper divisors (38535548856).

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

25430335464 is a wasteful number, since it uses less digits than its factorization.

25430335464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500769 (or 6500765 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 39.

The spelling of 25430335464 in words is "twenty-five billion, four hundred thirty million, three hundred thirty-five thousand, four hundred sixty-four".