51695074358 has 16 divisors (see below), whose sum is σ = 78902357040. Its totient is φ = 25396273056.

The previous prime is 51695074339. The next prime is 51695074373. The reversal of 51695074358 is 85347059615.

It is a happy number.

It is a super-2 number, since 2×51695074358² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443741 + ... + 547992.

It is an arithmetic number, because the mean of its divisors is an integer number (4931397315).

Almost surely, 2^51695074358 is an apocalyptic number.

51695074358 is a deficient number, since it is larger than the sum of its proper divisors (27207282682).

51695074358 is a wasteful number, since it uses less digits than its factorization.

51695074358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992191.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 51695074358 in words is "fifty-one billion, six hundred ninety-five million, seventy-four thousand, three hundred fifty-eight".