2312507798949 has 4 divisors (see below), whose sum is σ = 3083343731936. Its totient is φ = 1541671865964.

The previous prime is 2312507798947. The next prime is 2312507799031. The reversal of 2312507798949 is 9498977052132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2312507798949 - 2¹ = 2312507798947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2312507798949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312507798947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385417966489 + ... + 385417966494.

It is an arithmetic number, because the mean of its divisors is an integer number (770835932984).

Almost surely, 2^{2312507798949} is an apocalyptic number.

It is an amenable number.

2312507798949 is a deficient number, since it is larger than the sum of its proper divisors (770835932987).

2312507798949 is an equidigital number, since it uses as much as digits as its factorization.

2312507798949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770835932986.

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 2312507798949 in words is "two trillion, three hundred twelve billion, five hundred seven million, seven hundred ninety-eight thousand, nine hundred forty-nine".