138669762807 has 64 divisors (see below), whose sum is σ = 221937615360. Its totient is φ = 85246566912.

The previous prime is 138669762797. The next prime is 138669762839. The reversal of 138669762807 is 708267966831.

It is not a de Polignac number, because 138669762807 - 2²⁰ = 138668714231 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138669762307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19141728 + ... + 19148970.

It is an arithmetic number, because the mean of its divisors is an integer number (3467775240).

Almost surely, 2^138669762807 is an apocalyptic number.

138669762807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

138669762807 is a deficient number, since it is larger than the sum of its proper divisors (83267852553).

138669762807 is a wasteful number, since it uses less digits than its factorization.

138669762807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 138669762807 in words is "one hundred thirty-eight billion, six hundred sixty-nine million, seven hundred sixty-two thousand, eight hundred seven".