51196723170 has 32 divisors (see below), whose sum is σ = 124352528832. Its totient is φ = 13487971392.

The previous prime is 51196723147. The next prime is 51196723213. The reversal of 51196723170 is 7132769115.

It is a super-2 number, since 2×51196723170² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10277977 + ... + 10282956.

It is an arithmetic number, because the mean of its divisors is an integer number (3886016526).

Almost surely, 2^51196723170 is an apocalyptic number.

51196723170 is an abundant number, since it is smaller than the sum of its proper divisors (73155805662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51196723170 is a wasteful number, since it uses less digits than its factorization.

51196723170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20561026.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 51196723170 in words is "fifty-one billion, one hundred ninety-six million, seven hundred twenty-three thousand, one hundred seventy".