101720885928 has 32 divisors (see below), whose sum is σ = 255114700800. Its totient is φ = 33798630528.

The previous prime is 101720885923. The next prime is 101720885963. The reversal of 101720885928 is 829588027101.

It is not an unprimeable number, because it can be changed into a prime (101720885923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6763048 + ... + 6778071.

It is an arithmetic number, because the mean of its divisors is an integer number (7972334400).

Almost surely, 2^101720885928 is an apocalyptic number.

It is an amenable number.

101720885928 is an abundant number, since it is smaller than the sum of its proper divisors (153393814872).

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

101720885928 is a wasteful number, since it uses less digits than its factorization.

101720885928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13541441 (or 13541437 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 101720885928 in words is "one hundred one billion, seven hundred twenty million, eight hundred eighty-five thousand, nine hundred twenty-eight".