42949546931 has 8 divisors (see below), whose sum is σ = 43650396000. Its totient is φ = 42253548480.

The previous prime is 42949546919. The next prime is 42949546993. The reversal of 42949546931 is 13964594924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42949546931 is a prime.

It is a super-2 number, since 2×42949546931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42949546631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194800 + ... + 1230221.

It is an arithmetic number, because the mean of its divisors is an integer number (5456299500).

Almost surely, 2^42949546931 is an apocalyptic number.

42949546931 is a deficient number, since it is larger than the sum of its proper divisors (700849069).

42949546931 is a wasteful number, since it uses less digits than its factorization.

42949546931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425309.

The product of its digits is 8398080, while the sum is 56.

The spelling of 42949546931 in words is "forty-two billion, nine hundred forty-nine million, five hundred forty-six thousand, nine hundred thirty-one".