28940418160 has 20 divisors (see below), whose sum is σ = 67286472408. Its totient is φ = 11576167232.

The previous prime is 28940418151. The next prime is 28940418191. The reversal of 28940418160 is 6181404982.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180877534 + ... + 180877693.

Almost surely, 2^28940418160 is an apocalyptic number.

28940418160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28940418160 is an abundant number, since it is smaller than the sum of its proper divisors (38346054248).

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

28940418160 is a wasteful number, since it uses less digits than its factorization.

28940418160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361755240 (or 361755234 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 28940418160 in words is "twenty-eight billion, nine hundred forty million, four hundred eighteen thousand, one hundred sixty".