51591098662 has 8 divisors (see below), whose sum is σ = 77535184392. Its totient is φ = 25746037200.

The previous prime is 51591098641. The next prime is 51591098723. The reversal of 51591098662 is 26689019515.

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

It is a super-2 number, since 2×51591098662² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24754764 + ... + 24756847.

It is an arithmetic number, because the mean of its divisors is an integer number (9691898049).

Almost surely, 2^51591098662 is an apocalyptic number.

51591098662 is a deficient number, since it is larger than the sum of its proper divisors (25944085730).

51591098662 is a wasteful number, since it uses less digits than its factorization.

51591098662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49512134.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 51591098662 in words is "fifty-one billion, five hundred ninety-one million, ninety-eight thousand, six hundred sixty-two".