139926897999 has 12 divisors (see below), whose sum is σ = 230990434896. Its totient is φ = 79958227392.

The previous prime is 139926897997. The next prime is 139926898061. The reversal of 139926897999 is 999798629931.

It is a happy number.

It is not a de Polignac number, because 139926897999 - 2¹ = 139926897997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139926897997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110530874 + ... + 1110530999.

It is an arithmetic number, because the mean of its divisors is an integer number (19249202908).

Almost surely, 2^139926897999 is an apocalyptic number.

139926897999 is a deficient number, since it is larger than the sum of its proper divisors (91063536897).

139926897999 is a wasteful number, since it uses less digits than its factorization.

139926897999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221061886 (or 2221061883 counting only the distinct ones).

The product of its digits is 1071385056, while the sum is 81.

The spelling of 139926897999 in words is "one hundred thirty-nine billion, nine hundred twenty-six million, eight hundred ninety-seven thousand, nine hundred ninety-nine".