38849917792 has 24 divisors (see below), whose sum is σ = 87412315536. Its totient is φ = 16649964672.

The previous prime is 38849917783. The next prime is 38849917793. The reversal of 38849917792 is 29771994883.

It is a super-2 number, since 2×38849917792² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38849917793) 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, 86718343 + ... + 86718790.

It is an arithmetic number, because the mean of its divisors is an integer number (3642179814).

Almost surely, 2^38849917792 is an apocalyptic number.

38849917792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38849917792 is an abundant number, since it is smaller than the sum of its proper divisors (48562397744).

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

38849917792 is a wasteful number, since it uses less digits than its factorization.

38849917792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173437150 (or 173437142 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 67.

The spelling of 38849917792 in words is "thirty-eight billion, eight hundred forty-nine million, nine hundred seventeen thousand, seven hundred ninety-two".