28373909100 has 36 divisors (see below), whose sum is σ = 82095177864. Its totient is φ = 7566375680.

The previous prime is 28373909087. The next prime is 28373909101. The reversal of 28373909100 is 190937382.

It is not an unprimeable number, because it can be changed into a prime (28373909101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47289549 + ... + 47290148.

Almost surely, 2^28373909100 is an apocalyptic number.

28373909100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28373909100 is an abundant number, since it is smaller than the sum of its proper divisors (53721268764).

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

28373909100 is a wasteful number, since it uses less digits than its factorization.

28373909100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94579714 (or 94579707 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 28373909100 in words is "twenty-eight billion, three hundred seventy-three million, nine hundred nine thousand, one hundred".