42774882431 has 4 divisors (see below), whose sum is σ = 44634659952. Its totient is φ = 40915104912.

The previous prime is 42774882421. The next prime is 42774882439. The reversal of 42774882431 is 13428847724.

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 42774882431 - 2²⁶ = 42707773567 is a prime.

It is a super-2 number, since 2×42774882431² (a number of 22 digits) contains 22 as substring.

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 42774882431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42774882439) 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, 929888726 + ... + 929888771.

It is an arithmetic number, because the mean of its divisors is an integer number (11158664988).

Almost surely, 2^42774882431 is an apocalyptic number.

42774882431 is a deficient number, since it is larger than the sum of its proper divisors (1859777521).

42774882431 is a wasteful number, since it uses less digits than its factorization.

42774882431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859777520.

The product of its digits is 2408448, while the sum is 50.

The spelling of 42774882431 in words is "forty-two billion, seven hundred seventy-four million, eight hundred eighty-two thousand, four hundred thirty-one".