25345664744 has 16 divisors (see below), whose sum is σ = 47712460320. Its totient is φ = 12622342000.

The previous prime is 25345664737. The next prime is 25345664749. The reversal of 25345664744 is 44746654352.

It is a junction number, because it is equal to n+sod(n) for n = 25345664692 and 25345664701.

It is not an unprimeable number, because it can be changed into a prime (25345664749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6309164 + ... + 6313179.

It is an arithmetic number, because the mean of its divisors is an integer number (2982028770).

Almost surely, 2^25345664744 is an apocalyptic number.

It is an amenable number.

25345664744 is a deficient number, since it is larger than the sum of its proper divisors (22366795576).

25345664744 is a wasteful number, since it uses less digits than its factorization.

25345664744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12622600 (or 12622596 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 50.

The spelling of 25345664744 in words is "twenty-five billion, three hundred forty-five million, six hundred sixty-four thousand, seven hundred forty-four".