19803733500432 has 40 divisors (see below), whose sum is σ = 58468165573696. Its totient is φ = 5658209571456.

The previous prime is 19803733500431. The next prime is 19803733500479. The reversal of 19803733500432 is 23400533730891.

It is a super-2 number, since 2×19803733500432² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (19803733500431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29469841183 + ... + 29469841854.

Almost surely, 2^{19803733500432} is an apocalyptic number.

19803733500432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19803733500432 is an abundant number, since it is smaller than the sum of its proper divisors (38664432073264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19803733500432 is a wasteful number, since it uses less digits than its factorization.

19803733500432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58939683055 (or 58939683049 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 19803733500432 in words is "nineteen trillion, eight hundred three billion, seven hundred thirty-three million, five hundred thousand, four hundred thirty-two".