2312915447947 has 16 divisors (see below), whose sum is σ = 2511040315392. Its totient is φ = 2117685457440.

The previous prime is 2312915447939. The next prime is 2312915447957. The reversal of 2312915447947 is 7497445192132.

It is a cyclic number.

It is not a de Polignac number, because 2312915447947 - 2³ = 2312915447939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312915447891 and 2312915447900.

It is not an unprimeable number, because it can be changed into a prime (2312915447917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6887418 + ... + 7215424.

It is an arithmetic number, because the mean of its divisors is an integer number (156940019712).

Almost surely, 2^{2312915447947} is an apocalyptic number.

2312915447947 is a deficient number, since it is larger than the sum of its proper divisors (198124867445).

2312915447947 is a wasteful number, since it uses less digits than its factorization.

2312915447947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332418.

The product of its digits is 15240960, while the sum is 58.

The spelling of 2312915447947 in words is "two trillion, three hundred twelve billion, nine hundred fifteen million, four hundred forty-seven thousand, nine hundred forty-seven".