315906046049 has 6 divisors (see below), whose sum is σ = 347235571410. Its totient is φ = 287187314480.

The previous prime is 315906045929. The next prime is 315906046069. The reversal of 315906046049 is 940640609513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 187406739025 + 128499307024 = 432905^2 + 358468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-315906046049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315906045994 and 315906046012.

It is not an unprimeable number, because it can be changed into a prime (315906046069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1305396764 + ... + 1305397005.

It is an arithmetic number, because the mean of its divisors is an integer number (57872595235).

Almost surely, 2^315906046049 is an apocalyptic number.

It is an amenable number.

315906046049 is a deficient number, since it is larger than the sum of its proper divisors (31329525361).

315906046049 is a wasteful number, since it uses less digits than its factorization.

315906046049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610793791 (or 2610793780 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 315906046049 in words is "three hundred fifteen billion, nine hundred six million, forty-six thousand, forty-nine".