42774804179 has 4 divisors (see below), whose sum is σ = 43499800920. Its totient is φ = 42049807440.

The previous prime is 42774804169. The next prime is 42774804203. The reversal of 42774804179 is 97140847724.

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 42774804179 - 2²⁰ = 42773755603 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 42774804179.

It is not an unprimeable number, because it can be changed into a prime (42774804169) 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, 362498282 + ... + 362498399.

It is an arithmetic number, because the mean of its divisors is an integer number (10874950230).

Almost surely, 2^42774804179 is an apocalyptic number.

42774804179 is a deficient number, since it is larger than the sum of its proper divisors (724996741).

42774804179 is an equidigital number, since it uses as much as digits as its factorization.

42774804179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724996740.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 42774804179 in words is "forty-two billion, seven hundred seventy-four million, eight hundred four thousand, one hundred seventy-nine".