42633131913 has 48 divisors (see below), whose sum is σ = 70384878720. Its totient is φ = 24704773632.

The previous prime is 42633131909. The next prime is 42633131923. The reversal of 42633131913 is 31913133624.

It is a happy number.

42633131913 is a `hidden beast` number, since 4 + 2 + 6 + 331 + 319 + 1 + 3 = 666.

It is not a de Polignac number, because 42633131913 - 2² = 42633131909 is a prime.

It is a super-2 number, since 2×42633131913² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42633131923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106831 + ... + 310932.

It is an arithmetic number, because the mean of its divisors is an integer number (1466351640).

Almost surely, 2^42633131913 is an apocalyptic number.

It is an amenable number.

42633131913 is a deficient number, since it is larger than the sum of its proper divisors (27751746807).

42633131913 is a wasteful number, since it uses less digits than its factorization.

42633131913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417838 (or 417835 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The spelling of 42633131913 in words is "forty-two billion, six hundred thirty-three million, one hundred thirty-one thousand, nine hundred thirteen".