51917081194 has 8 divisors (see below), whose sum is σ = 84955223808. Its totient is φ = 23598673260.

The previous prime is 51917081171. The next prime is 51917081213. The reversal of 51917081194 is 49118071915.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179933642 + ... + 1179933685.

It is an arithmetic number, because the mean of its divisors is an integer number (10619402976).

Almost surely, 2^51917081194 is an apocalyptic number.

51917081194 is a deficient number, since it is larger than the sum of its proper divisors (33038142614).

51917081194 is a wasteful number, since it uses less digits than its factorization.

51917081194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359867340.

The product of its (nonzero) digits is 90720, while the sum is 46.

The spelling of 51917081194 in words is "fifty-one billion, nine hundred seventeen million, eighty-one thousand, one hundred ninety-four".