28130006356 has 24 divisors (see below), whose sum is σ = 50444614080. Its totient is φ = 13717483200.

The previous prime is 28130006323. The next prime is 28130006357. The reversal of 28130006356 is 65360003182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28130006357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508161 + ... + 560791.

It is an arithmetic number, because the mean of its divisors is an integer number (2101858920).

Almost surely, 2^28130006356 is an apocalyptic number.

It is an amenable number.

28130006356 is a deficient number, since it is larger than the sum of its proper divisors (22314607724).

28130006356 is a wasteful number, since it uses less digits than its factorization.

28130006356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55935 (or 55933 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 28130006356 in words is "twenty-eight billion, one hundred thirty million, six thousand, three hundred fifty-six".