25314243494 has 16 divisors (see below), whose sum is σ = 38346055440. Its totient is φ = 12532384800.

The previous prime is 25314243481. The next prime is 25314243529. The reversal of 25314243494 is 49434241352.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284144 + ... + 362444.

It is an arithmetic number, because the mean of its divisors is an integer number (2396628465).

Almost surely, 2^25314243494 is an apocalyptic number.

25314243494 is a deficient number, since it is larger than the sum of its proper divisors (13031811946).

25314243494 is a wasteful number, since it uses less digits than its factorization.

25314243494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79895.

The product of its digits is 414720, while the sum is 41.

The spelling of 25314243494 in words is "twenty-five billion, three hundred fourteen million, two hundred forty-three thousand, four hundred ninety-four".