42839872401 has 4 divisors (see below), whose sum is σ = 57119829872. Its totient is φ = 28559914932.

The previous prime is 42839872379. The next prime is 42839872421. The reversal of 42839872401 is 10427893824.

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 42839872401 - 2²¹ = 42837775249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42839872421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139978731 + ... + 7139978736.

It is an arithmetic number, because the mean of its divisors is an integer number (14279957468).

Almost surely, 2^42839872401 is an apocalyptic number.

It is an amenable number.

42839872401 is a deficient number, since it is larger than the sum of its proper divisors (14279957471).

42839872401 is a wasteful number, since it uses less digits than its factorization.

42839872401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279957470.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 42839872401 in words is "forty-two billion, eight hundred thirty-nine million, eight hundred seventy-two thousand, four hundred one".