42722867931 has 16 divisors (see below), whose sum is σ = 59465581056. Its totient is φ = 27232078016.

The previous prime is 42722867927. The next prime is 42722867933. The reversal of 42722867931 is 13976822724.

It is not a de Polignac number, because 42722867931 - 2² = 42722867927 is a prime.

It is a super-2 number, since 2×42722867931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42722867933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35746 + ... + 294488.

It is an arithmetic number, because the mean of its divisors is an integer number (3716598816).

Almost surely, 2^42722867931 is an apocalyptic number.

42722867931 is a deficient number, since it is larger than the sum of its proper divisors (16742713125).

42722867931 is a wasteful number, since it uses less digits than its factorization.

42722867931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261162.

The product of its digits is 2032128, while the sum is 51.

The spelling of 42722867931 in words is "forty-two billion, seven hundred twenty-two million, eight hundred sixty-seven thousand, nine hundred thirty-one".