315856066387 has 4 divisors (see below), whose sum is σ = 334435835016. Its totient is φ = 297276297760.

The previous prime is 315856066289. The next prime is 315856066399. The reversal of 315856066387 is 783660658513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315856066387 - 2¹⁹ = 315855542099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315856006387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9289884289 + ... + 9289884322.

It is an arithmetic number, because the mean of its divisors is an integer number (83608958754).

Almost surely, 2^315856066387 is an apocalyptic number.

315856066387 is a deficient number, since it is larger than the sum of its proper divisors (18579768629).

315856066387 is a wasteful number, since it uses less digits than its factorization.

315856066387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18579768628.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 315856066387 in words is "three hundred fifteen billion, eight hundred fifty-six million, sixty-six thousand, three hundred eighty-seven".