19902483831 has 16 divisors (see below), whose sum is σ = 29576448000. Its totient is φ = 11830578048.

The previous prime is 19902483829. The next prime is 19902483851. The reversal of 19902483831 is 13838420991.

It is not a de Polignac number, because 19902483831 - 2¹ = 19902483829 is a prime.

It is a super-2 number, since 2×19902483831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19902483851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10268631 + ... + 10270568.

It is an arithmetic number, because the mean of its divisors is an integer number (1848528000).

Almost surely, 2^19902483831 is an apocalyptic number.

19902483831 is a deficient number, since it is larger than the sum of its proper divisors (9673964169).

19902483831 is a wasteful number, since it uses less digits than its factorization.

19902483831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539238.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 19902483831 in words is "nineteen billion, nine hundred two million, four hundred eighty-three thousand, eight hundred thirty-one".