51497336132 has 12 divisors (see below), whose sum is σ = 98313096336. Its totient is φ = 23407880040.

The previous prime is 51497336131. The next prime is 51497336159. The reversal of 51497336132 is 23163379415.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1170394003 = 51497336132 / (5 + 1 + 4 + 9 + 7 + 3 + 3 + 6 + 1 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (51497336131) 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, 585196958 + ... + 585197045.

It is an arithmetic number, because the mean of its divisors is an integer number (8192758028).

Almost surely, 2^51497336132 is an apocalyptic number.

It is an amenable number.

51497336132 is a deficient number, since it is larger than the sum of its proper divisors (46815760204).

51497336132 is a wasteful number, since it uses less digits than its factorization.

51497336132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170394018 (or 1170394016 counting only the distinct ones).

The product of its digits is 408240, while the sum is 44.

The spelling of 51497336132 in words is "fifty-one billion, four hundred ninety-seven million, three hundred thirty-six thousand, one hundred thirty-two".