138345245800 has 48 divisors (see below), whose sum is σ = 321687362700. Its totient is φ = 55332134400.

The previous prime is 138345245791. The next prime is 138345245827. The reversal of 138345245800 is 8542543831.

It can be written as a sum of positive squares in 6 ways, for example, as 45306825316 + 93038420484 = 212854^2 + 305022^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2140356 + ... + 2204044.

Almost surely, 2^138345245800 is an apocalyptic number.

138345245800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138345245800 is an abundant number, since it is smaller than the sum of its proper divisors (183342116900).

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

138345245800 is a wasteful number, since it uses less digits than its factorization.

138345245800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74566 (or 74557 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 138345245800 in words is "one hundred thirty-eight billion, three hundred forty-five million, two hundred forty-five thousand, eight hundred".