28475313930 has 48 divisors (see below), whose sum is σ = 84612363264. Its totient is φ = 6508643040.

The previous prime is 28475313917. The next prime is 28475313941. The reversal of 28475313930 is 3931357482.

28475313930 is a `hidden beast` number, since 2 + 84 + 7 + 531 + 3 + 9 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22598826 + ... + 22600085.

It is an arithmetic number, because the mean of its divisors is an integer number (1762757568).

Almost surely, 2^28475313930 is an apocalyptic number.

28475313930 is an abundant number, since it is smaller than the sum of its proper divisors (56137049334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28475313930 is a wasteful number, since it uses less digits than its factorization.

28475313930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45198931 (or 45198928 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 28475313930 in words is "twenty-eight billion, four hundred seventy-five million, three hundred thirteen thousand, nine hundred thirty".