315272517477556 has 12 divisors (see below), whose sum is σ = 551896302877668. Its totient is φ = 157587859512512.

The previous prime is 315272517477553. The next prime is 315272517477623. The reversal of 315272517477556 is 655774715272513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115329127939600 + 199943389537956 = 10739140^2 + 14140134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 315272517477491 and 315272517477500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315272517477553) 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, 12099791911 + ... + 12099817966.

It is an arithmetic number, because the mean of its divisors is an integer number (45991358573139).

Almost surely, 2^{315272517477556} is an apocalyptic number.

It is an amenable number.

315272517477556 is a deficient number, since it is larger than the sum of its proper divisors (236623785400112).

315272517477556 is a wasteful number, since it uses less digits than its factorization.

315272517477556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24199613138 (or 24199613136 counting only the distinct ones).

The product of its digits is 432180000, while the sum is 67.

The spelling of 315272517477556 in words is "three hundred fifteen trillion, two hundred seventy-two billion, five hundred seventeen million, four hundred seventy-seven thousand, five hundred fifty-six".