42409691331 has 8 divisors (see below), whose sum is σ = 64624291584. Its totient is φ = 24234109320.

The previous prime is 42409691299. The next prime is 42409691341. The reversal of 42409691331 is 13319690424.

42409691331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42409691331 - 2⁵ = 42409691299 is a prime.

It is a super-2 number, since 2×42409691331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42409691341) 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, 1009754535 + ... + 1009754576.

It is an arithmetic number, because the mean of its divisors is an integer number (8078036448).

Almost surely, 2^42409691331 is an apocalyptic number.

42409691331 is a deficient number, since it is larger than the sum of its proper divisors (22214600253).

42409691331 is a wasteful number, since it uses less digits than its factorization.

42409691331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019509121.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 42409691331 in words is "forty-two billion, four hundred nine million, six hundred ninety-one thousand, three hundred thirty-one".