42774318231 has 4 divisors (see below), whose sum is σ = 57032424312. Its totient is φ = 28516212152.

The previous prime is 42774318221. The next prime is 42774318247. The reversal of 42774318231 is 13281347724.

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 42774318231 - 2¹⁹ = 42773793943 is a prime.

It is a super-2 number, since 2×42774318231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42774318221) 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, 7129053036 + ... + 7129053041.

It is an arithmetic number, because the mean of its divisors is an integer number (14258106078).

Almost surely, 2^42774318231 is an apocalyptic number.

42774318231 is a deficient number, since it is larger than the sum of its proper divisors (14258106081).

42774318231 is a wasteful number, since it uses less digits than its factorization.

42774318231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14258106080.

The product of its digits is 225792, while the sum is 42.

The spelling of 42774318231 in words is "forty-two billion, seven hundred seventy-four million, three hundred eighteen thousand, two hundred thirty-one".