51813294392 has 16 divisors (see below), whose sum is σ = 97914888960. Its totient is φ = 25702657344.

The previous prime is 51813294391. The next prime is 51813294431. The reversal of 51813294392 is 29349231815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51813294391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25497653 + ... + 25499684.

It is an arithmetic number, because the mean of its divisors is an integer number (6119680560).

Almost surely, 2^51813294392 is an apocalyptic number.

It is an amenable number.

51813294392 is a deficient number, since it is larger than the sum of its proper divisors (46101594568).

51813294392 is a wasteful number, since it uses less digits than its factorization.

51813294392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50997470 (or 50997466 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The spelling of 51813294392 in words is "fifty-one billion, eight hundred thirteen million, two hundred ninety-four thousand, three hundred ninety-two".