51312421315 has 8 divisors (see below), whose sum is σ = 62885010240. Its totient is φ = 40176533952.

The previous prime is 51312421267. The next prime is 51312421327.

51312421315 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 51312421315 - 2³¹ = 49164937667 is a prime.

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, 109175130 + ... + 109175599.

It is an arithmetic number, because the mean of its divisors is an integer number (7860626280).

Almost surely, 2^51312421315 is an apocalyptic number.

51312421315 is a deficient number, since it is larger than the sum of its proper divisors (11572588925).

51312421315 is a wasteful number, since it uses less digits than its factorization.

51312421315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218350781.

The product of its digits is 3600, while the sum is 28.

The spelling of 51312421315 in words is "fifty-one billion, three hundred twelve million, four hundred twenty-one thousand, three hundred fifteen".