138092321378 has 8 divisors (see below), whose sum is σ = 225969253200. Its totient is φ = 62769236980.

The previous prime is 138092321371. The next prime is 138092321399. The reversal of 138092321378 is 873123290831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138092321371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138461828 + ... + 3138461871.

It is an arithmetic number, because the mean of its divisors is an integer number (28246156650).

Almost surely, 2^138092321378 is an apocalyptic number.

138092321378 is a deficient number, since it is larger than the sum of its proper divisors (87876931822).

138092321378 is a wasteful number, since it uses less digits than its factorization.

138092321378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276923712.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 138092321378 in words is "one hundred thirty-eight billion, ninety-two million, three hundred twenty-one thousand, three hundred seventy-eight".