51612443337 has 144 divisors (see below), whose sum is σ = 90597824640. Its totient is φ = 25571220480.

The previous prime is 51612443329. The next prime is 51612443347. The reversal of 51612443337 is 73334421615.

It is not a de Polignac number, because 51612443337 - 2³ = 51612443329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 51612443295 and 51612443304.

It is not an unprimeable number, because it can be changed into a prime (51612443317) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 126191589 + ... + 126191997.

It is an arithmetic number, because the mean of its divisors is an integer number (629151560).

Almost surely, 2^51612443337 is an apocalyptic number.

It is an amenable number.

51612443337 is a deficient number, since it is larger than the sum of its proper divisors (38985381303).

51612443337 is a wasteful number, since it uses less digits than its factorization.

51612443337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 500 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The spelling of 51612443337 in words is "fifty-one billion, six hundred twelve million, four hundred forty-three thousand, three hundred thirty-seven".