28497022893 has 48 divisors (see below), whose sum is σ = 42996096000. Its totient is φ = 18167224320.

The previous prime is 28497022819. The next prime is 28497022907. The reversal of 28497022893 is 39822079482.

It is a happy number.

It is not a de Polignac number, because 28497022893 - 2²² = 28492828589 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28497021893) 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, 13653496 + ... + 13655582.

It is an arithmetic number, because the mean of its divisors is an integer number (895752000).

Almost surely, 2^28497022893 is an apocalyptic number.

It is an amenable number.

28497022893 is a deficient number, since it is larger than the sum of its proper divisors (14499073107).

28497022893 is a wasteful number, since it uses less digits than its factorization.

28497022893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 28497022893 in words is "twenty-eight billion, four hundred ninety-seven million, twenty-two thousand, eight hundred ninety-three".