51395046634 has 8 divisors (see below), whose sum is σ = 77479970400. Its totient is φ = 25568389836.

The previous prime is 51395046617. The next prime is 51395046679. The reversal of 51395046634 is 43664059315.

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

It is a super-2 number, since 2×51395046634² (a number of 22 digits) contains 22 as substring.

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, 64566244 + ... + 64567039.

It is an arithmetic number, because the mean of its divisors is an integer number (9684996300).

Almost surely, 2^51395046634 is an apocalyptic number.

51395046634 is a deficient number, since it is larger than the sum of its proper divisors (26084923766).

51395046634 is a wasteful number, since it uses less digits than its factorization.

51395046634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129133484.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 51395046634 in words is "fifty-one billion, three hundred ninety-five million, forty-six thousand, six hundred thirty-four".