42790656031 has 4 divisors (see below), whose sum is σ = 42907252192. Its totient is φ = 42674059872.

The previous prime is 42790656019. The next prime is 42790656037. The reversal of 42790656031 is 13065609724.

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 42790656031 - 2²⁵ = 42757101599 is a prime.

It is a super-3 number, since 3×42790656031³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42790656037) 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, 58297530 + ... + 58298263.

It is an arithmetic number, because the mean of its divisors is an integer number (10726813048).

Almost surely, 2^42790656031 is an apocalyptic number.

42790656031 is a deficient number, since it is larger than the sum of its proper divisors (116596161).

42790656031 is a wasteful number, since it uses less digits than its factorization.

42790656031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116596160.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 42790656031 in words is "forty-two billion, seven hundred ninety million, six hundred fifty-six thousand, thirty-one".