51613194297 has 8 divisors (see below), whose sum is σ = 78648677056. Its totient is φ = 29493253872.

The previous prime is 51613194293. The next prime is 51613194299. The reversal of 51613194297 is 79249131615.

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

It is not a de Polignac number, because 51613194297 - 2² = 51613194293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51613194293) 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, 1228885558 + ... + 1228885599.

It is an arithmetic number, because the mean of its divisors is an integer number (9831084632).

Almost surely, 2^51613194297 is an apocalyptic number.

It is an amenable number.

51613194297 is a deficient number, since it is larger than the sum of its proper divisors (27035482759).

51613194297 is a wasteful number, since it uses less digits than its factorization.

51613194297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457771167.

The product of its digits is 408240, while the sum is 48.

The spelling of 51613194297 in words is "fifty-one billion, six hundred thirteen million, one hundred ninety-four thousand, two hundred ninety-seven".