51514864369 has 8 divisors (see below), whose sum is σ = 55249309440. Its totient is φ = 47882732976.

The previous prime is 51514864319. The next prime is 51514864393. The reversal of 51514864369 is 96346841515.

It is a happy number.

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

It is not a de Polignac number, because 51514864369 - 2¹⁷ = 51514733297 is a prime.

It is a super-2 number, since 2×51514864369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51514864319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25577377 + ... + 25579390.

It is an arithmetic number, because the mean of its divisors is an integer number (6906163680).

Almost surely, 2^51514864369 is an apocalyptic number.

It is an amenable number.

51514864369 is a deficient number, since it is larger than the sum of its proper divisors (3734445071).

51514864369 is a wasteful number, since it uses less digits than its factorization.

51514864369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51156839.

The product of its digits is 3110400, while the sum is 52.

The spelling of 51514864369 in words is "fifty-one billion, five hundred fourteen million, eight hundred sixty-four thousand, three hundred sixty-nine".