25287038974 has 4 divisors (see below), whose sum is σ = 37930558464. Its totient is φ = 12643519486.

The previous prime is 25287038941. The next prime is 25287038981. The reversal of 25287038974 is 47983078252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6321759742 + ... + 6321759745.

It is an arithmetic number, because the mean of its divisors is an integer number (9482639616).

Almost surely, 2^25287038974 is an apocalyptic number.

25287038974 is a deficient number, since it is larger than the sum of its proper divisors (12643519490).

25287038974 is a wasteful number, since it uses less digits than its factorization.

25287038974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643519489.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 25287038974 in words is "twenty-five billion, two hundred eighty-seven million, thirty-eight thousand, nine hundred seventy-four".