38005781880 has 64 divisors (see below), whose sum is σ = 124382563200. Its totient is φ = 9213522560.

The previous prime is 38005781843. The next prime is 38005781881. The reversal of 38005781880 is 8818750083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38005781881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14394810 + ... + 14397449.

It is an arithmetic number, because the mean of its divisors is an integer number (1943477550).

Almost surely, 2^38005781880 is an apocalyptic number.

38005781880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38005781880 is an abundant number, since it is smaller than the sum of its proper divisors (86376781320).

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

38005781880 is a wasteful number, since it uses less digits than its factorization.

38005781880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28792284 (or 28792280 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 38005781880 in words is "thirty-eight billion, five million, seven hundred eighty-one thousand, eight hundred eighty".