138758140610 has 8 divisors (see below), whose sum is σ = 249764653116. Its totient is φ = 55503256240.

The previous prime is 138758140607. The next prime is 138758140649. The reversal of 138758140610 is 16041857831.

It can be written as a sum of positive squares in 2 ways, for example, as 138331181041 + 426959569 = 371929^2 + 20663^2 .

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

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, 6937907021 + ... + 6937907040.

Almost surely, 2^138758140610 is an apocalyptic number.

138758140610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138758140610 is a deficient number, since it is larger than the sum of its proper divisors (111006512506).

138758140610 is a wasteful number, since it uses less digits than its factorization.

138758140610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875814068.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 138758140610 in words is "one hundred thirty-eight billion, seven hundred fifty-eight million, one hundred forty thousand, six hundred ten".