28415920307 has 16 divisors (see below), whose sum is σ = 30741110400. Its totient is φ = 26177981760.

The previous prime is 28415920301. The next prime is 28415920319. The reversal of 28415920307 is 70302951482.

It is not a de Polignac number, because 28415920307 - 2³⁰ = 27342178483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28415920301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179744 + ... + 298562.

It is an arithmetic number, because the mean of its divisors is an integer number (1921319400).

Almost surely, 2^28415920307 is an apocalyptic number.

28415920307 is a deficient number, since it is larger than the sum of its proper divisors (2325190093).

28415920307 is a wasteful number, since it uses less digits than its factorization.

28415920307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119186.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 28415920307 in words is "twenty-eight billion, four hundred fifteen million, nine hundred twenty thousand, three hundred seven".