51312145315 has 8 divisors (see below), whose sum is σ = 63006541488. Its totient is φ = 40095071520.

The previous prime is 51312145277. The next prime is 51312145337. The reversal of 51312145315 is 51354121315.

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

It is not a de Polignac number, because 51312145315 - 2²⁷ = 51177927587 is a prime.

It is a Duffinian 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, 119330356 + ... + 119330785.

It is an arithmetic number, because the mean of its divisors is an integer number (7875817686).

Almost surely, 2^51312145315 is an apocalyptic number.

51312145315 is a deficient number, since it is larger than the sum of its proper divisors (11694396173).

51312145315 is a wasteful number, since it uses less digits than its factorization.

51312145315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238661189.

The product of its digits is 9000, while the sum is 31.

The spelling of 51312145315 in words is "fifty-one billion, three hundred twelve million, one hundred forty-five thousand, three hundred fifteen".