312167497747 has 4 divisors (see below), whose sum is σ = 356762854576. Its totient is φ = 267572140920.

The previous prime is 312167497721. The next prime is 312167497751. The reversal of 312167497747 is 747794761213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747794761213 = 67 ⋅11161115839.

It is not a de Polignac number, because 312167497747 - 2⁷ = 312167497619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312167497691 and 312167497700.

It is not an unprimeable number, because it can be changed into a prime (312167497777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22297678404 + ... + 22297678417.

It is an arithmetic number, because the mean of its divisors is an integer number (89190713644).

Almost surely, 2^312167497747 is an apocalyptic number.

312167497747 is a deficient number, since it is larger than the sum of its proper divisors (44595356829).

312167497747 is an equidigital number, since it uses as much as digits as its factorization.

312167497747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44595356828.

The product of its digits is 12446784, while the sum is 58.

The spelling of 312167497747 in words is "three hundred twelve billion, one hundred sixty-seven million, four hundred ninety-seven thousand, seven hundred forty-seven".