38997831039 has 8 divisors (see below), whose sum is σ = 52511931312. Its totient is φ = 25741142400.

The previous prime is 38997831023. The next prime is 38997831073. The reversal of 38997831039 is 93013879983.

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

It is not a de Polignac number, because 38997831039 - 2⁴ = 38997831023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38997832039) 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, 64352554 + ... + 64353159.

It is an arithmetic number, because the mean of its divisors is an integer number (6563991414).

Almost surely, 2^38997831039 is an apocalyptic number.

38997831039 is a deficient number, since it is larger than the sum of its proper divisors (13514100273).

38997831039 is a wasteful number, since it uses less digits than its factorization.

38997831039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128705817.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 38997831039 in words is "thirty-eight billion, nine hundred ninety-seven million, eight hundred thirty-one thousand, thirty-nine".