28646794053 has 6 divisors (see below), whose sum is σ = 41378702534. Its totient is φ = 19097862696.

The previous prime is 28646794037. The next prime is 28646794067. The reversal of 28646794053 is 35049764682.

It can be written as a sum of positive squares in only one way, i.e., 17609820804 + 11036973249 = 132702^2 + 105057^2 .

It is not a de Polignac number, because 28646794053 - 2⁴ = 28646794037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28646794003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1591488550 + ... + 1591488567.

Almost surely, 2^28646794053 is an apocalyptic number.

It is an amenable number.

28646794053 is a deficient number, since it is larger than the sum of its proper divisors (12731908481).

28646794053 is a wasteful number, since it uses less digits than its factorization.

28646794053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182977123 (or 3182977120 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 28646794053 in words is "twenty-eight billion, six hundred forty-six million, seven hundred ninety-four thousand, fifty-three".