42479432631 has 12 divisors (see below), whose sum is σ = 61800615240. Its totient is φ = 28115882640.

The previous prime is 42479432627. The next prime is 42479432663. The reversal of 42479432631 is 13623497424.

42479432631 is a `hidden beast` number, since 4 + 2 + 4 + 7 + 9 + 4 + 3 + 2 + 631 = 666.

It is not a de Polignac number, because 42479432631 - 2² = 42479432627 is a prime.

It is a super-2 number, since 2×42479432631² (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 (42479432621) 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 11 ways as a sum of consecutive naturals, for example, 16976940 + ... + 16979441.

It is an arithmetic number, because the mean of its divisors is an integer number (5150051270).

Almost surely, 2^42479432631 is an apocalyptic number.

42479432631 is a deficient number, since it is larger than the sum of its proper divisors (19321182609).

42479432631 is a wasteful number, since it uses less digits than its factorization.

42479432631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33956526 (or 33956523 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The spelling of 42479432631 in words is "forty-two billion, four hundred seventy-nine million, four hundred thirty-two thousand, six hundred thirty-one".