51393986162 has 8 divisors (see below), whose sum is σ = 77105743536. Its totient is φ = 25692071652.

The previous prime is 51393986107. The next prime is 51393986177. The reversal of 51393986162 is 26168939315.

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

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, 2447648 + ... + 2468555.

It is an arithmetic number, because the mean of its divisors is an integer number (9638217942).

Almost surely, 2^51393986162 is an apocalyptic number.

51393986162 is a deficient number, since it is larger than the sum of its proper divisors (25711757374).

51393986162 is a wasteful number, since it uses less digits than its factorization.

51393986162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921432.

The product of its digits is 2099520, while the sum is 53.

The spelling of 51393986162 in words is "fifty-one billion, three hundred ninety-three million, nine hundred eighty-six thousand, one hundred sixty-two".