38463139689 has 8 divisors (see below), whose sum is σ = 55229123712. Its totient is φ = 23669624400.

The previous prime is 38463139679. The next prime is 38463139697. The reversal of 38463139689 is 98693136483.

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

It is not a de Polignac number, because 38463139689 - 2²⁹ = 37926268777 is a prime.

It is a super-2 number, since 2×38463139689² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38463139619) 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, 493117137 + ... + 493117214.

It is an arithmetic number, because the mean of its divisors is an integer number (6903640464).

Almost surely, 2^38463139689 is an apocalyptic number.

38463139689 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38463139689 is a deficient number, since it is larger than the sum of its proper divisors (16765984023).

38463139689 is a wasteful number, since it uses less digits than its factorization.

38463139689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986234367.

The product of its digits is 20155392, while the sum is 60.

The spelling of 38463139689 in words is "thirty-eight billion, four hundred sixty-three million, one hundred thirty-nine thousand, six hundred eighty-nine".