28486973808 has 80 divisors (see below), whose sum is σ = 81788812800. Its totient is φ = 9493260480.

The previous prime is 28486973803. The next prime is 28486973813. The reversal of 28486973808 is 80837968482.

28486973808 is a `hidden beast` number, since 2 + 8 + 486 + 9 + 73 + 80 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (28486973803) and next prime (28486973813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28486973803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799033 + ... + 2809191.

It is an arithmetic number, because the mean of its divisors is an integer number (1022360160).

Almost surely, 2^28486973808 is an apocalyptic number.

It is an amenable number.

28486973808 is an abundant number, since it is smaller than the sum of its proper divisors (53301838992).

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

28486973808 is a wasteful number, since it uses less digits than its factorization.

28486973808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16667 (or 16655 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 63.

The spelling of 28486973808 in words is "twenty-eight billion, four hundred eighty-six million, nine hundred seventy-three thousand, eight hundred eight".