28090455401488 has 20 divisors (see below), whose sum is σ = 54425907349840. Its totient is φ = 14045059956384.

The previous prime is 28090455401471. The next prime is 28090455401501. The reversal of 28090455401488 is 88410455409082.

It is a happy number.

It is a super-2 number, since 2×28090455401488² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9096918 + ... + 11787061.

It is an arithmetic number, because the mean of its divisors is an integer number (2721295367492).

Almost surely, 2^{28090455401488} is an apocalyptic number.

It is an amenable number.

28090455401488 is a deficient number, since it is larger than the sum of its proper divisors (26335451948352).

28090455401488 is a wasteful number, since it uses less digits than its factorization.

28090455401488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20968054 (or 20968048 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 58.

The spelling of 28090455401488 in words is "twenty-eight trillion, ninety billion, four hundred fifty-five million, four hundred one thousand, four hundred eighty-eight".