42774154831 has 2 divisors, whose sum is σ = 42774154832. Its totient is φ = 42774154830.

The previous prime is 42774154817. The next prime is 42774154859. The reversal of 42774154831 is 13845147724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42774154831 is a prime.

It is a super-2 number, since 2×42774154831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42774154231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387077415 + 21387077416.

It is an arithmetic number, because the mean of its divisors is an integer number (21387077416).

Almost surely, 2^42774154831 is an apocalyptic number.

42774154831 is a deficient number, since it is larger than the sum of its proper divisors (1).

42774154831 is an equidigital number, since it uses as much as digits as its factorization.

42774154831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 46.

The spelling of 42774154831 in words is "forty-two billion, seven hundred seventy-four million, one hundred fifty-four thousand, eight hundred thirty-one".