51742807532 has 24 divisors (see below), whose sum is σ = 101755088736. Its totient is φ = 22842978048.

The previous prime is 51742807517. The next prime is 51742807549. The reversal of 51742807532 is 23570824715.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21630413 + ... + 21632804.

It is an arithmetic number, because the mean of its divisors is an integer number (4239795364).

Almost surely, 2^51742807532 is an apocalyptic number.

51742807532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51742807532 is a deficient number, since it is larger than the sum of its proper divisors (50012281204).

51742807532 is a wasteful number, since it uses less digits than its factorization.

51742807532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43263257 (or 43263255 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 51742807532 in words is "fifty-one billion, seven hundred forty-two million, eight hundred seven thousand, five hundred thirty-two".