51031162444 has 12 divisors (see below), whose sum is σ = 89797930768. Its totient is φ = 25374610800.

The previous prime is 51031162423. The next prime is 51031162499. The reversal of 51031162444 is 44426113015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35241792 + ... + 35243239.

Almost surely, 2^51031162444 is an apocalyptic number.

It is an amenable number.

51031162444 is a deficient number, since it is larger than the sum of its proper divisors (38766768324).

51031162444 is a wasteful number, since it uses less digits than its factorization.

51031162444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70485216 (or 70485214 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 51031162444 its reverse (44426113015), we get a palindrome (95457275459).

The spelling of 51031162444 in words is "fifty-one billion, thirty-one million, one hundred sixty-two thousand, four hundred forty-four".