42431738517 has 16 divisors (see below), whose sum is σ = 71842097280. Its totient is φ = 24246707616.

The previous prime is 42431738497. The next prime is 42431738527. The reversal of 42431738517 is 71583713424.

42431738517 is a `hidden beast` number, since 4 + 243 + 17 + 385 + 17 = 666.

It is not a de Polignac number, because 42431738517 - 2¹⁹ = 42431214229 is a prime.

It is a super-2 number, since 2×42431738517² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42431738527) 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, 112253088 + ... + 112253465.

It is an arithmetic number, because the mean of its divisors is an integer number (4490131080).

Almost surely, 2^42431738517 is an apocalyptic number.

It is an amenable number.

42431738517 is a deficient number, since it is larger than the sum of its proper divisors (29410358763).

42431738517 is a wasteful number, since it uses less digits than its factorization.

42431738517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224506569 (or 224506563 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 42431738517 in words is "forty-two billion, four hundred thirty-one million, seven hundred thirty-eight thousand, five hundred seventeen".