4992815879 has 4 divisors (see below), whose sum is σ = 5056016160. Its totient is φ = 4929615600.

The previous prime is 4992815837. The next prime is 4992815899. The reversal of 4992815879 is 9785182994.

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

It is a cyclic number.

It is not a de Polignac number, because 4992815879 - 2³² = 697848583 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 (4992815899) 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, 31600022 + ... + 31600179.

It is an arithmetic number, because the mean of its divisors is an integer number (1264004040).

Almost surely, 2^4992815879 is an apocalyptic number.

4992815879 is a deficient number, since it is larger than the sum of its proper divisors (63200281).

4992815879 is an equidigital number, since it uses as much as digits as its factorization.

4992815879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63200280.

The product of its digits is 13063680, while the sum is 62.

The square root of 4992815879 is about 70659.8604513199. The cubic root of 4992815879 is about 1709.1565758468.

The spelling of 4992815879 in words is "four billion, nine hundred ninety-two million, eight hundred fifteen thousand, eight hundred seventy-nine".