70139685888 has 220 divisors, whose sum is σ = 210137650800. Its totient is φ = 23303282688.

The previous prime is 70139685887. The next prime is 70139685901. The reversal of 70139685888 is 88858693107.

It is not an unprimeable number, because it can be changed into a prime (70139685887) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28946245 + ... + 28948667.

It is an arithmetic number, because the mean of its divisors is an integer number (955171140).

Almost surely, 2^70139685888 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 70139685888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105068825400).

70139685888 is an abundant number, since it is smaller than the sum of its proper divisors (139997964912).

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

70139685888 is a wasteful number, since it uses less digits than its factorization.

70139685888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 70139685888 in words is "seventy billion, one hundred thirty-nine million, six hundred eighty-five thousand, eight hundred eighty-eight".