38218148840 has 16 divisors (see below), whose sum is σ = 85990834980. Its totient is φ = 15287259520.

The previous prime is 38218148833. The next prime is 38218148933. The reversal of 38218148840 is 4884181283.

It can be written as a sum of positive squares in 2 ways, for example, as 36326072836 + 1892076004 = 190594^2 + 43498^2 .

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, 477726821 + ... + 477726900.

Almost surely, 2^38218148840 is an apocalyptic number.

It is an amenable number.

38218148840 is an abundant number, since it is smaller than the sum of its proper divisors (47772686140).

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

38218148840 is a wasteful number, since it uses less digits than its factorization.

38218148840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955453732 (or 955453728 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 47.

The spelling of 38218148840 in words is "thirty-eight billion, two hundred eighteen million, one hundred forty-eight thousand, eight hundred forty".