315656325323477 has 2 divisors, whose sum is σ = 315656325323478. Its totient is φ = 315656325323476.

The previous prime is 315656325323413. The next prime is 315656325323483. The reversal of 315656325323477 is 774323523656513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315619599050596 + 36726272881 = 17765686^2 + 191641^2 .

It is an emirp because it is prime and its reverse (774323523656513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315656325323477 - 2⁶ = 315656325323413 is a prime.

It is a super-3 number, since 3×315656325323477³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315656325326477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157828162661738 + 157828162661739.

It is an arithmetic number, because the mean of its divisors is an integer number (157828162661739).

Almost surely, 2^{315656325323477} is an apocalyptic number.

It is an amenable number.

315656325323477 is a deficient number, since it is larger than the sum of its proper divisors (1).

315656325323477 is an equidigital number, since it uses as much as digits as its factorization.

315656325323477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768000, while the sum is 62.

The spelling of 315656325323477 in words is "three hundred fifteen trillion, six hundred fifty-six billion, three hundred twenty-five million, three hundred twenty-three thousand, four hundred seventy-seven".