138500336810 has 32 divisors (see below), whose sum is σ = 271998376704. Its totient is φ = 50357448000.

The previous prime is 138500336801. The next prime is 138500336813. The reversal of 138500336810 is 18633005831.

It is a super-2 number, since 2×138500336810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138500336813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852740 + ... + 1002080.

It is an arithmetic number, because the mean of its divisors is an integer number (8499949272).

Almost surely, 2^138500336810 is an apocalyptic number.

138500336810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138500336810 is a deficient number, since it is larger than the sum of its proper divisors (133498039894).

138500336810 is a wasteful number, since it uses less digits than its factorization.

138500336810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157790.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 138500336810 in words is "one hundred thirty-eight billion, five hundred million, three hundred thirty-six thousand, eight hundred ten".