28417662990 has 96 divisors (see below), whose sum is σ = 74275340256. Its totient is φ = 7538227200.

The previous prime is 28417662979. The next prime is 28417662997. The reversal of 28417662990 is 9926671482.

28417662990 is a `hidden beast` number, since 2 + 8 + 4 + 1 + 7 + 6 + 629 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28417662997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16492269 + ... + 16493991.

It is an arithmetic number, because the mean of its divisors is an integer number (773701461).

Almost surely, 2^28417662990 is an apocalyptic number.

28417662990 is an abundant number, since it is smaller than the sum of its proper divisors (45857677266).

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

28417662990 is a wasteful number, since it uses less digits than its factorization.

28417662990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 28417662990 in words is "twenty-eight billion, four hundred seventeen million, six hundred sixty-two thousand, nine hundred ninety".