25707949120 has 112 divisors (see below), whose sum is σ = 70175737728. Its totient is φ = 8787271680.

The previous prime is 25707949093. The next prime is 25707949133. The reversal of 25707949120 is 2194970752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

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, 724104 + ... + 758776.

Almost surely, 2^25707949120 is an apocalyptic number.

25707949120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25707949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35087868864).

25707949120 is an abundant number, since it is smaller than the sum of its proper divisors (44467788608).

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

25707949120 is a wasteful number, since it uses less digits than its factorization.

25707949120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35028 (or 35018 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 25707949120 in words is "twenty-five billion, seven hundred seven million, nine hundred forty-nine thousand, one hundred twenty".