25642675674 has 96 divisors (see below), whose sum is σ = 70958160000. Its totient is φ = 6497971200.

The previous prime is 25642675673. The next prime is 25642675691. The reversal of 25642675674 is 47657624652.

25642675674 is a `hidden beast` number, since 2 + 56 + 4 + 26 + 7 + 567 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25642675674.

It is not an unprimeable number, because it can be changed into a prime (25642675673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168799 + ... + 282450.

It is an arithmetic number, because the mean of its divisors is an integer number (739147500).

Almost surely, 2^25642675674 is an apocalyptic number.

25642675674 is an abundant number, since it is smaller than the sum of its proper divisors (45315484326).

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

25642675674 is a wasteful number, since it uses less digits than its factorization.

25642675674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451316 (or 451313 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 54.

The spelling of 25642675674 in words is "twenty-five billion, six hundred forty-two million, six hundred seventy-five thousand, six hundred seventy-four".