315145625670647 has 4 divisors (see below), whose sum is σ = 318090911891976. Its totient is φ = 312200339449320.

The previous prime is 315145625670587. The next prime is 315145625670677. The reversal of 315145625670647 is 746076526541513.

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 315145625670647 - 2³² = 315141330703351 is a prime.

It is a super-2 number, since 2×315145625670647² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315145625670647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315145625670677) 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, 1472643110504 + ... + 1472643110717.

It is an arithmetic number, because the mean of its divisors is an integer number (79522727972994).

Almost surely, 2^{315145625670647} is an apocalyptic number.

315145625670647 is a deficient number, since it is larger than the sum of its proper divisors (2945286221329).

315145625670647 is a wasteful number, since it uses less digits than its factorization.

315145625670647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945286221328.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 315145625670647 in words is "three hundred fifteen trillion, one hundred forty-five billion, six hundred twenty-five million, six hundred seventy thousand, six hundred forty-seven".