28490086396 has 24 divisors (see below), whose sum is σ = 51341149440. Its totient is φ = 13824825600.

The previous prime is 28490086367. The next prime is 28490086411. The reversal of 28490086396 is 69368009482.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423441 + ... + 486088.

It is an arithmetic number, because the mean of its divisors is an integer number (2139214560).

Almost surely, 2^28490086396 is an apocalyptic number.

It is an amenable number.

28490086396 is a deficient number, since it is larger than the sum of its proper divisors (22851063044).

28490086396 is a wasteful number, since it uses less digits than its factorization.

28490086396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909765 (or 909763 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 28490086396 in words is "twenty-eight billion, four hundred ninety million, eighty-six thousand, three hundred ninety-six".