25389384974 has 16 divisors (see below), whose sum is σ = 38331885312. Its totient is φ = 12612147768.

The previous prime is 25389384971. The next prime is 25389384991. The reversal of 25389384974 is 47948398352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25389384971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972617 + ... + 998379.

It is an arithmetic number, because the mean of its divisors is an integer number (2395742832).

Almost surely, 2^25389384974 is an apocalyptic number.

25389384974 is a deficient number, since it is larger than the sum of its proper divisors (12942500338).

25389384974 is a wasteful number, since it uses less digits than its factorization.

25389384974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28951.

The product of its digits is 52254720, while the sum is 62.

The spelling of 25389384974 in words is "twenty-five billion, three hundred eighty-nine million, three hundred eighty-four thousand, nine hundred seventy-four".