38582181840 has 40 divisors (see below), whose sum is σ = 119604764448. Its totient is φ = 10288581760.

The previous prime is 38582181809. The next prime is 38582181931. The reversal of 38582181840 is 4818128583.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 38582181840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80379306 + ... + 80379785.

Almost surely, 2^38582181840 is an apocalyptic number.

38582181840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38582181840 is an abundant number, since it is smaller than the sum of its proper divisors (81022582608).

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

38582181840 is a wasteful number, since it uses less digits than its factorization.

38582181840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160759107 (or 160759101 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 38582181840 in words is "thirty-eight billion, five hundred eighty-two million, one hundred eighty-one thousand, eight hundred forty".