139690638340 has 192 divisors, whose sum is σ = 346802964480. Its totient is φ = 46714752000.

The previous prime is 139690638331. The next prime is 139690638377. The reversal of 139690638340 is 43836096931.

139690638340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 36159249 + ... + 36163111.

It is an arithmetic number, because the mean of its divisors is an integer number (1806265440).

Almost surely, 2^139690638340 is an apocalyptic number.

139690638340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139690638340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173401482240).

139690638340 is an abundant number, since it is smaller than the sum of its proper divisors (207112326140).

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

139690638340 is a wasteful number, since it uses less digits than its factorization.

139690638340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 139690638340 in words is "one hundred thirty-nine billion, six hundred ninety million, six hundred thirty-eight thousand, three hundred forty".