51392238982 has 64 divisors (see below), whose sum is σ = 90774028800. Its totient is φ = 21368759040.

The previous prime is 51392238967. The next prime is 51392239001. The reversal of 51392238982 is 28983229315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20780098 + ... + 20782570.

It is an arithmetic number, because the mean of its divisors is an integer number (1418344200).

Almost surely, 2^51392238982 is an apocalyptic number.

51392238982 is a deficient number, since it is larger than the sum of its proper divisors (39381789818).

51392238982 is a wasteful number, since it uses less digits than its factorization.

51392238982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861.

The product of its digits is 1866240, while the sum is 52.

The spelling of 51392238982 in words is "fifty-one billion, three hundred ninety-two million, two hundred thirty-eight thousand, nine hundred eighty-two".