51312040415 has 8 divisors (see below), whose sum is σ = 62044483248. Its totient is φ = 40736275840.

The previous prime is 51312040369. The next prime is 51312040453. The reversal of 51312040415 is 51404021315.

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

It is not a de Polignac number, because 51312040415 - 2²⁴ = 51295263199 is a prime.

It is a Duffinian number.

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, 39168842 + ... + 39170151.

It is an arithmetic number, because the mean of its divisors is an integer number (7755560406).

Almost surely, 2^51312040415 is an apocalyptic number.

51312040415 is a deficient number, since it is larger than the sum of its proper divisors (10732442833).

51312040415 is a wasteful number, since it uses less digits than its factorization.

51312040415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78339129.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 51312040415 in words is "fifty-one billion, three hundred twelve million, forty thousand, four hundred fifteen".