34517120640 has 128 divisors (see below), whose sum is σ = 115814145600. Its totient is φ = 8720105472.

The previous prime is 34517120639. The next prime is 34517120669. The reversal of 34517120640 is 4602171543.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436617 + ... + 509576.

Almost surely, 2^34517120640 is an apocalyptic number.

34517120640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34517120640 is an abundant number, since it is smaller than the sum of its proper divisors (81297024960).

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

34517120640 is a wasteful number, since it uses less digits than its factorization.

34517120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946234 (or 946222 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 34517120640 in words is "thirty-four billion, five hundred seventeen million, one hundred twenty thousand, six hundred forty".