25701957312 has 112 divisors (see below), whose sum is σ = 68698506240. Its totient is φ = 8480161792.

The previous prime is 25701957233. The next prime is 25701957313. The reversal of 25701957312 is 21375910752.

It is not an unprimeable number, because it can be changed into a prime (25701957313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8238889 + ... + 8242007.

It is an arithmetic number, because the mean of its divisors is an integer number (613379520).

Almost surely, 2^25701957312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25701957312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34349253120).

25701957312 is an abundant number, since it is smaller than the sum of its proper divisors (42996548928).

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

25701957312 is a wasteful number, since it uses less digits than its factorization.

25701957312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 25701957312 in words is "twenty-five billion, seven hundred one million, nine hundred fifty-seven thousand, three hundred twelve".