19837157932 has 12 divisors (see below), whose sum is σ = 34720803936. Its totient is φ = 9916928240.

The previous prime is 19837157927. The next prime is 19837157933. The reversal of 19837157932 is 23975173891.

It is a super-2 number, since 2×19837157932² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19837157933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385444 + ... + 433867.

It is an arithmetic number, because the mean of its divisors is an integer number (2893400328).

Almost surely, 2^19837157932 is an apocalyptic number.

It is an amenable number.

19837157932 is a deficient number, since it is larger than the sum of its proper divisors (14883646004).

19837157932 is a wasteful number, since it uses less digits than its factorization.

19837157932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825368 (or 825366 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The spelling of 19837157932 in words is "nineteen billion, eight hundred thirty-seven million, one hundred fifty-seven thousand, nine hundred thirty-two".