299507645479 has 4 divisors (see below), whose sum is σ = 342294451984. Its totient is φ = 256720838976.

The previous prime is 299507645471. The next prime is 299507645509. The reversal of 299507645479 is 974546705992.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 299507645479 - 2³ = 299507645471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299507645471) 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, 21393403242 + ... + 21393403255.

It is an arithmetic number, because the mean of its divisors is an integer number (85573612996).

Almost surely, 2^299507645479 is an apocalyptic number.

299507645479 is a deficient number, since it is larger than the sum of its proper divisors (42786806505).

299507645479 is an equidigital number, since it uses as much as digits as its factorization.

299507645479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42786806504.

The product of its (nonzero) digits is 171460800, while the sum is 67.

The spelling of 299507645479 in words is "two hundred ninety-nine billion, five hundred seven million, six hundred forty-five thousand, four hundred seventy-nine".