139655818893 has 8 divisors (see below), whose sum is σ = 186770321056. Its totient is φ = 92822598000.

The previous prime is 139655818879. The next prime is 139655818933. The reversal of 139655818893 is 398818556931.

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

It is not a de Polignac number, because 139655818893 - 2⁴ = 139655818877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139655818823) 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, 70319158 + ... + 70321143.

It is an arithmetic number, because the mean of its divisors is an integer number (23346290132).

Almost surely, 2^139655818893 is an apocalyptic number.

It is an amenable number.

139655818893 is a deficient number, since it is larger than the sum of its proper divisors (47114502163).

139655818893 is a wasteful number, since it uses less digits than its factorization.

139655818893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140640635.

The product of its digits is 55987200, while the sum is 66.

The spelling of 139655818893 in words is "one hundred thirty-nine billion, six hundred fifty-five million, eight hundred eighteen thousand, eight hundred ninety-three".