35139659620 has 72 divisors (see below), whose sum is σ = 80120093760. Its totient is φ = 12939937920.

The previous prime is 35139659603. The next prime is 35139659663. The reversal of 35139659620 is 2695693153.

35139659620 is digitally balanced in base 2, 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 23 ways as a sum of consecutive naturals, for example, 1267305 + ... + 1294735.

It is an arithmetic number, because the mean of its divisors is an integer number (1112779080).

Almost surely, 2^35139659620 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 35139659620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40060046880).

35139659620 is an abundant number, since it is smaller than the sum of its proper divisors (44980434140).

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

35139659620 is a wasteful number, since it uses less digits than its factorization.

35139659620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27845 (or 27830 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 49.

The spelling of 35139659620 in words is "thirty-five billion, one hundred thirty-nine million, six hundred fifty-nine thousand, six hundred twenty".