51097164782 has 8 divisors (see below), whose sum is σ = 77088786696. Its totient is φ = 25400902552.

The previous prime is 51097164763. The next prime is 51097164791. The reversal of 51097164782 is 28746179015.

It is a happy number.

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

It is a super-2 number, since 2×51097164782² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51097164782.

It is a congruent number.

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, 73839488 + ... + 73840179.

It is an arithmetic number, because the mean of its divisors is an integer number (9636098337).

Almost surely, 2^51097164782 is an apocalyptic number.

51097164782 is a deficient number, since it is larger than the sum of its proper divisors (25991621914).

51097164782 is a wasteful number, since it uses less digits than its factorization.

51097164782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147679842.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 51097164782 in words is "fifty-one billion, ninety-seven million, one hundred sixty-four thousand, seven hundred eighty-two".