138927928235 has 16 divisors (see below), whose sum is σ = 173222042400. Its totient is φ = 106837092096.

The previous prime is 138927928229. The next prime is 138927928267. The reversal of 138927928235 is 532829729831.

It is a cyclic number.

It is not a de Polignac number, because 138927928235 - 2¹⁶ = 138927862699 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077490 + ... + 2143319.

It is an arithmetic number, because the mean of its divisors is an integer number (10826377650).

Almost surely, 2^138927928235 is an apocalyptic number.

138927928235 is a deficient number, since it is larger than the sum of its proper divisors (34294114165).

138927928235 is a wasteful number, since it uses less digits than its factorization.

138927928235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221070.

The product of its digits is 13063680, while the sum is 59.

The spelling of 138927928235 in words is "one hundred thirty-eight billion, nine hundred twenty-seven million, nine hundred twenty-eight thousand, two hundred thirty-five".