25620878074 has 24 divisors (see below), whose sum is σ = 42751668960. Its totient is φ = 11505533160.

The previous prime is 25620878057. The next prime is 25620878077. The reversal of 25620878074 is 47087802652.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25620878077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617694 + ... + 657865.

It is an arithmetic number, because the mean of its divisors is an integer number (1781319540).

Almost surely, 2^25620878074 is an apocalyptic number.

25620878074 is a deficient number, since it is larger than the sum of its proper divisors (17130790886).

25620878074 is a wasteful number, since it uses less digits than its factorization.

25620878074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275666 (or 1275655 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 25620878074 in words is "twenty-five billion, six hundred twenty million, eight hundred seventy-eight thousand, seventy-four".