315222764018 has 54 divisors (see below), whose sum is σ = 507842045991. Its totient is φ = 146732308800.

The previous prime is 315222764009. The next prime is 315222764033. The reversal of 315222764018 is 810467222513.

It can be written as a sum of positive squares in 5 ways, for example, as 71169967729 + 244052796289 = 266777^2 + 494017^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=397003.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 748747448 + ... + 748747868.

Almost surely, 2^315222764018 is an apocalyptic number.

315222764018 is a deficient number, since it is larger than the sum of its proper divisors (192619281973).

315222764018 is an frugal number, since it uses more digits than its factorization.

315222764018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 315222764018 in words is "three hundred fifteen billion, two hundred twenty-two million, seven hundred sixty-four thousand, eighteen".