142517684631 has 16 divisors (see below), whose sum is σ = 217995554304. Its totient is φ = 81129021024.

The previous prime is 142517684579. The next prime is 142517684681. The reversal of 142517684631 is 136486715241.

It is a de Polignac number, because none of the positive numbers 2^k-142517684631 is a prime.

It is a super-2 number, since 2×142517684631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142517684681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12896676 + ... + 12907721.

It is an arithmetic number, because the mean of its divisors is an integer number (13624722144).

Almost surely, 2^142517684631 is an apocalyptic number.

142517684631 is a deficient number, since it is larger than the sum of its proper divisors (75477869673).

142517684631 is a wasteful number, since it uses less digits than its factorization.

142517684631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25804670.

The product of its digits is 967680, while the sum is 48.

The spelling of 142517684631 in words is "one hundred forty-two billion, five hundred seventeen million, six hundred eighty-four thousand, six hundred thirty-one".