51147316862 has 16 divisors (see below), whose sum is σ = 77057433600. Its totient is φ = 25461737208.

The previous prime is 51147316837. The next prime is 51147316877. The reversal of 51147316862 is 26861374115.

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, 388139 + ... + 502937.

It is an arithmetic number, because the mean of its divisors is an integer number (4816089600).

Almost surely, 2^51147316862 is an apocalyptic number.

51147316862 is a deficient number, since it is larger than the sum of its proper divisors (25910116738).

51147316862 is a wasteful number, since it uses less digits than its factorization.

51147316862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115775.

The product of its digits is 241920, while the sum is 44.

The spelling of 51147316862 in words is "fifty-one billion, one hundred forty-seven million, three hundred sixteen thousand, eight hundred sixty-two".