380642850138 has 16 divisors (see below), whose sum is σ = 787536931680. Its totient is φ = 122505744816.

The previous prime is 380642850121. The next prime is 380642850179. The reversal of 380642850138 is 831058246083.

It is a super-2 number, since 2×380642850138² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1093801120 + ... + 1093801467.

It is an arithmetic number, because the mean of its divisors is an integer number (49221058230).

Almost surely, 2^380642850138 is an apocalyptic number.

380642850138 is an abundant number, since it is smaller than the sum of its proper divisors (406894081542).

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

380642850138 is a wasteful number, since it uses less digits than its factorization.

380642850138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187602621.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 380642850138 in words is "three hundred eighty billion, six hundred forty-two million, eight hundred fifty thousand, one hundred thirty-eight".