42646735131 has 64 divisors (see below), whose sum is σ = 78410228736. Its totient is φ = 19897228800.

The previous prime is 42646735129. The next prime is 42646735141. The reversal of 42646735131 is 13153764624.

It is not a de Polignac number, because 42646735131 - 2¹ = 42646735129 is a prime.

It is a super-2 number, since 2×42646735131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42646735141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80800 + ... + 303021.

It is an arithmetic number, because the mean of its divisors is an integer number (1225159824).

Almost surely, 2^42646735131 is an apocalyptic number.

42646735131 is a deficient number, since it is larger than the sum of its proper divisors (35763493605).

42646735131 is a wasteful number, since it uses less digits than its factorization.

42646735131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383892.

The product of its digits is 362880, while the sum is 42.

It can be divided in two parts, 42646 and 735131, that added together give a palindrome (777777).

The spelling of 42646735131 in words is "forty-two billion, six hundred forty-six million, seven hundred thirty-five thousand, one hundred thirty-one".