138601883787 has 8 divisors (see below), whose sum is σ = 191175012240. Its totient is φ = 89215005600.

The previous prime is 138601883773. The next prime is 138601883821. The reversal of 138601883787 is 787388106831.

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

It is not a de Polignac number, because 138601883787 - 2¹⁵ = 138601851019 is a prime.

It is a super-2 number, since 2×138601883787² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138601883787.

It is not an unprimeable number, because it can be changed into a prime (138601883767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796562464 + ... + 796562637.

It is an arithmetic number, because the mean of its divisors is an integer number (23896876530).

Almost surely, 2^138601883787 is an apocalyptic number.

138601883787 is a deficient number, since it is larger than the sum of its proper divisors (52573128453).

138601883787 is a wasteful number, since it uses less digits than its factorization.

138601883787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593125133.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 138601883787 in words is "one hundred thirty-eight billion, six hundred one million, eight hundred eighty-three thousand, seven hundred eighty-seven".