19962117632 has 20 divisors (see below), whose sum is σ = 39885247776. Its totient is φ = 9981058560.

The previous prime is 19962117631. The next prime is 19962117667. The reversal of 19962117632 is 23671126991.

It is a super-2 number, since 2×19962117632² (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 (19962117631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19493744 + ... + 19494767.

Almost surely, 2^19962117632 is an apocalyptic number.

It is an amenable number.

19962117632 is a deficient number, since it is larger than the sum of its proper divisors (19923130144).

19962117632 is an frugal number, since it uses more digits than its factorization.

19962117632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38988529 (or 38988513 counting only the distinct ones).

The product of its digits is 244944, while the sum is 47.

The spelling of 19962117632 in words is "nineteen billion, nine hundred sixty-two million, one hundred seventeen thousand, six hundred thirty-two".