38532991893 has 8 divisors (see below), whose sum is σ = 56047988256. Its totient is φ = 23353328400.

The previous prime is 38532991873. The next prime is 38532991919. The reversal of 38532991893 is 39819923583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38532991893 - 2²² = 38528797589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38532991813) 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, 583833178 + ... + 583833243.

It is an arithmetic number, because the mean of its divisors is an integer number (7005998532).

Almost surely, 2^38532991893 is an apocalyptic number.

38532991893 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38532991893 is a deficient number, since it is larger than the sum of its proper divisors (17514996363).

38532991893 is a wasteful number, since it uses less digits than its factorization.

38532991893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167666435.

The product of its digits is 12597120, while the sum is 60.

The spelling of 38532991893 in words is "thirty-eight billion, five hundred thirty-two million, nine hundred ninety-one thousand, eight hundred ninety-three".