38381223992 has 16 divisors (see below), whose sum is σ = 71967025800. Its totient is φ = 19190017120.

The previous prime is 38381223983. The next prime is 38381224027. The reversal of 38381223992 is 29932218383.

It is a super-3 number, since 3×38381223992³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38381223992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327767 + ... + 429177.

Almost surely, 2^38381223992 is an apocalyptic number.

It is an amenable number.

38381223992 is a deficient number, since it is larger than the sum of its proper divisors (33585801808).

38381223992 is a wasteful number, since it uses less digits than its factorization.

38381223992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148726 (or 148722 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The spelling of 38381223992 in words is "thirty-eight billion, three hundred eighty-one million, two hundred twenty-three thousand, nine hundred ninety-two".