133873707962928 has 20 divisors (see below), whose sum is σ = 345840412237688. Its totient is φ = 44624569320960.

The previous prime is 133873707962927. The next prime is 133873707962963. The reversal of 133873707962928 is 829269707378331.

It is a self number, because there is not a number n which added to its sum of digits gives 133873707962928.

It is not an unprimeable number, because it can be changed into a prime (133873707962921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394517791233 + ... + 1394517791328.

Almost surely, 2^{133873707962928} is an apocalyptic number.

It is an amenable number.

133873707962928 is an abundant number, since it is smaller than the sum of its proper divisors (211966704274760).

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

133873707962928 is a wasteful number, since it uses less digits than its factorization.

133873707962928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789035582572 (or 2789035582566 counting only the distinct ones).

The product of its (nonzero) digits is 1152216576, while the sum is 75.

The spelling of 133873707962928 in words is "one hundred thirty-three trillion, eight hundred seventy-three billion, seven hundred seven million, nine hundred sixty-two thousand, nine hundred twenty-eight".