28417479990 has 32 divisors (see below), whose sum is σ = 72213832800. Its totient is φ = 7132230144.

The previous prime is 28417479917. The next prime is 28417480001. The reversal of 28417479990 is 9997471482.

It is a Curzon number.

It is a congruent number.

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, 27859765 + ... + 27860784.

It is an arithmetic number, because the mean of its divisors is an integer number (2256682275).

Almost surely, 2^28417479990 is an apocalyptic number.

28417479990 is an abundant number, since it is smaller than the sum of its proper divisors (43796352810).

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

28417479990 is a wasteful number, since it uses less digits than its factorization.

28417479990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55720576.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 28417479990 in words is "twenty-eight billion, four hundred seventeen million, four hundred seventy-nine thousand, nine hundred ninety".