2928103719021 has 36 divisors (see below), whose sum is σ = 4644359699616.
Its totient is φ = 1776530901600.
The previous prime is 2928103719017. The next prime is 2928103719067. The reversal of 2928103719021 is 1209173018292.
It is not a de Polignac number, because 2928103719021 - 22 = 2928103719017 is a prime.
It is a super-2 number, since 2×29281037190212 (a number of 26 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2928103719091) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13449175 + ... + 13665156.
It is an arithmetic number, because the mean of its divisors is an integer number (129009991656).
Almost surely, 22928103719021 is an apocalyptic number.
It is an amenable number.
2928103719021 is a deficient number, since it is larger than the sum of its proper divisors (1716255980595).
2928103719021 is a wasteful number, since it uses less digits than its factorization.
2928103719021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27114434 (or 27114418 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 45.
The spelling of 2928103719021 in words is "two trillion, nine hundred twenty-eight billion, one hundred three million, seven hundred nineteen thousand, twenty-one".