51204331145 has 8 divisors (see below), whose sum is σ = 67031124480. Its totient is φ = 37239513520.

The previous prime is 51204331133. The next prime is 51204331151. The reversal of 51204331145 is 54113340215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51204331145 - 2²⁰ = 51203282569 is a prime.

It is a super-2 number, since 2×51204331145² (a number of 22 digits) contains 22 as substring.

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, 465493865 + ... + 465493974.

It is an arithmetic number, because the mean of its divisors is an integer number (8378890560).

Almost surely, 2^51204331145 is an apocalyptic number.

51204331145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51204331145 is a deficient number, since it is larger than the sum of its proper divisors (15826793335).

51204331145 is a wasteful number, since it uses less digits than its factorization.

51204331145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930987855.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 51204331145 in words is "fifty-one billion, two hundred four million, three hundred thirty-one thousand, one hundred forty-five".