19432242831 has 16 divisors (see below), whose sum is σ = 27180610560. Its totient is φ = 12331935840.

The previous prime is 19432242821. The next prime is 19432242877. The reversal of 19432242831 is 13824223491.

It is not a de Polignac number, because 19432242831 - 2¹¹ = 19432240783 is a prime.

It is a super-2 number, since 2×19432242831² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19432242831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19432242821) 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, 1566775 + ... + 1579128.

It is an arithmetic number, because the mean of its divisors is an integer number (1698788160).

Almost surely, 2^19432242831 is an apocalyptic number.

19432242831 is a deficient number, since it is larger than the sum of its proper divisors (7748367729).

19432242831 is a wasteful number, since it uses less digits than its factorization.

19432242831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146006.

The product of its digits is 82944, while the sum is 39.

The spelling of 19432242831 in words is "nineteen billion, four hundred thirty-two million, two hundred forty-two thousand, eight hundred thirty-one".