409427741879 has 4 divisors (see below), whose sum is σ = 440922183576. Its totient is φ = 377933300184.

The previous prime is 409427741857. The next prime is 409427741911. The reversal of 409427741879 is 978147724904.

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 409427741879 - 2²⁴ = 409410964663 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 (409427741479) 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, 15747220829 + ... + 15747220854.

It is an arithmetic number, because the mean of its divisors is an integer number (110230545894).

Almost surely, 2^409427741879 is an apocalyptic number.

409427741879 is a deficient number, since it is larger than the sum of its proper divisors (31494441697).

409427741879 is a wasteful number, since it uses less digits than its factorization.

409427741879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31494441696.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 409427741879 in words is "four hundred nine billion, four hundred twenty-seven million, seven hundred forty-one thousand, eight hundred seventy-nine".