51514864394 has 8 divisors (see below), whose sum is σ = 88311196128. Its totient is φ = 22077799020.

The previous prime is 51514864393. The next prime is 51514864477. The reversal of 51514864394 is 49346841515.

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

It is not an unprimeable number, because it can be changed into a prime (51514864393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839816572 + ... + 1839816599.

It is an arithmetic number, because the mean of its divisors is an integer number (11038899516).

Almost surely, 2^51514864394 is an apocalyptic number.

51514864394 is a deficient number, since it is larger than the sum of its proper divisors (36796331734).

51514864394 is a wasteful number, since it uses less digits than its factorization.

51514864394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679633180.

The product of its digits is 2073600, while the sum is 50.

The spelling of 51514864394 in words is "fifty-one billion, five hundred fourteen million, eight hundred sixty-four thousand, three hundred ninety-four".