25729489416 has 64 divisors (see below), whose sum is σ = 64621595520. Its totient is φ = 8536872960.

The previous prime is 25729489403. The next prime is 25729489427. The reversal of 25729489416 is 61498492752.

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, 5343426 + ... + 5348238.

It is an arithmetic number, because the mean of its divisors is an integer number (1009712430).

Almost surely, 2^25729489416 is an apocalyptic number.

It is an amenable number.

25729489416 is an abundant number, since it is smaller than the sum of its proper divisors (38892106104).

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

25729489416 is a wasteful number, since it uses less digits than its factorization.

25729489416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806 (or 5802 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 25729489416 in words is "twenty-five billion, seven hundred twenty-nine million, four hundred eighty-nine thousand, four hundred sixteen".