25361172912 has 40 divisors (see below), whose sum is σ = 67629798400. Its totient is φ = 8181023040.

The previous prime is 25361172877. The next prime is 25361172919. The reversal of 25361172912 is 21927116352.

It is not an unprimeable number, because it can be changed into a prime (25361172919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8520412 + ... + 8523387.

It is an arithmetic number, because the mean of its divisors is an integer number (1690744960).

Almost surely, 2^25361172912 is an apocalyptic number.

It is an amenable number.

25361172912 is an abundant number, since it is smaller than the sum of its proper divisors (42268625488).

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

25361172912 is a wasteful number, since it uses less digits than its factorization.

25361172912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17043841 (or 17043835 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The spelling of 25361172912 in words is "twenty-five billion, three hundred sixty-one million, one hundred seventy-two thousand, nine hundred twelve".