316621261047 has 32 divisors (see below), whose sum is σ = 519653578752. Its totient is φ = 166986526464.

The previous prime is 316621261039. The next prime is 316621261079. The reversal of 316621261047 is 740162126613.

It is a happy number.

It is not a de Polignac number, because 316621261047 - 2³ = 316621261039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 316621260996 and 316621261014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316621265047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2059858 + ... + 2208224.

It is an arithmetic number, because the mean of its divisors is an integer number (16239174336).

Almost surely, 2^316621261047 is an apocalyptic number.

316621261047 is a deficient number, since it is larger than the sum of its proper divisors (203032317705).

316621261047 is a wasteful number, since it uses less digits than its factorization.

316621261047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156207.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 316621261047 in words is "three hundred sixteen billion, six hundred twenty-one million, two hundred sixty-one thousand, forty-seven".