28002865289490 has 320 divisors, whose sum is σ = 98124071721984. Its totient is φ = 5560749729792.

The previous prime is 28002865289437. The next prime is 28002865289513. The reversal of 28002865289490 is 9498256820082.

28002865289490 is a `hidden beast` number, since 2 + 8 + 0 + 0 + 2 + 8 + 65 + 2 + 89 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9920634 + ... + 12426773.

Almost surely, 2^{28002865289490} is an apocalyptic number.

28002865289490 is an abundant number, since it is smaller than the sum of its proper divisors (70121206432494).

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

28002865289490 is a wasteful number, since it uses less digits than its factorization.

28002865289490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22347463 (or 22347454 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 28002865289490 in words is "twenty-eight trillion, two billion, eight hundred sixty-five million, two hundred eighty-nine thousand, four hundred ninety".