138852565613842 has 8 divisors (see below), whose sum is σ = 208300793328432. Its totient is φ = 69418967837700.

The previous prime is 138852565613837. The next prime is 138852565613843. The reversal of 138852565613842 is 248316565258831.

It is a happy number.

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 (138852565613843) 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, 3657460884 + ... + 3657498847.

It is an arithmetic number, because the mean of its divisors is an integer number (26037599166054).

Almost surely, 2^{138852565613842} is an apocalyptic number.

138852565613842 is a deficient number, since it is larger than the sum of its proper divisors (69448227714590).

138852565613842 is an equidigital number, since it uses as much as digits as its factorization.

138852565613842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314969224.

The product of its digits is 331776000, while the sum is 67.

The spelling of 138852565613842 in words is "one hundred thirty-eight trillion, eight hundred fifty-two billion, five hundred sixty-five million, six hundred thirteen thousand, eight hundred forty-two".