51512154339 has 16 divisors (see below), whose sum is σ = 69742870560. Its totient is φ = 33814640640.

The previous prime is 51512154329. The next prime is 51512154341. The reversal of 51512154339 is 93345121515.

It is not a de Polignac number, because 51512154339 - 2¹¹ = 51512152291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51512154297 and 51512154306.

It is not an unprimeable number, because it can be changed into a prime (51512154329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335922 + ... + 464615.

It is an arithmetic number, because the mean of its divisors is an integer number (4358929410).

Almost surely, 2^51512154339 is an apocalyptic number.

51512154339 is a deficient number, since it is larger than the sum of its proper divisors (18230716221).

51512154339 is a wasteful number, since it uses less digits than its factorization.

51512154339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800870.

The product of its digits is 81000, while the sum is 39.

The spelling of 51512154339 in words is "fifty-one billion, five hundred twelve million, one hundred fifty-four thousand, three hundred thirty-nine".