139229918268 has 192 divisors, whose sum is σ = 391694865408. Its totient is φ = 37658234880.

The previous prime is 139229918251. The next prime is 139229918273. The reversal of 139229918268 is 862819922931.

It is a super-3 number, since 3×139229918268³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37017508 + ... + 37021268.

It is an arithmetic number, because the mean of its divisors is an integer number (2040077424).

Almost surely, 2^139229918268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139229918268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195847432704).

139229918268 is an abundant number, since it is smaller than the sum of its proper divisors (252464947140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139229918268 is a wasteful number, since it uses less digits than its factorization.

139229918268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132 (or 4130 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The spelling of 139229918268 in words is "one hundred thirty-nine billion, two hundred twenty-nine million, nine hundred eighteen thousand, two hundred sixty-eight".