51161575323 has 8 divisors (see below), whose sum is σ = 70059094288. Its totient is φ = 33185886624.

The previous prime is 51161575319. The next prime is 51161575343. The reversal of 51161575323 is 32357516115.

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

It is not a de Polignac number, because 51161575323 - 2² = 51161575319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51161575313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230457436 + ... + 230457657.

It is an arithmetic number, because the mean of its divisors is an integer number (8757386786).

Almost surely, 2^51161575323 is an apocalyptic number.

51161575323 is a deficient number, since it is larger than the sum of its proper divisors (18897518965).

51161575323 is a wasteful number, since it uses less digits than its factorization.

51161575323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460915133.

The product of its digits is 94500, while the sum is 39.

The spelling of 51161575323 in words is "fifty-one billion, one hundred sixty-one million, five hundred seventy-five thousand, three hundred twenty-three".