28405314060 has 24 divisors (see below), whose sum is σ = 79534879536. Its totient is φ = 7574750400.

The previous prime is 28405314053. The next prime is 28405314101. The reversal of 28405314060 is 6041350482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236710891 + ... + 236711010.

It is an arithmetic number, because the mean of its divisors is an integer number (3313953314).

Almost surely, 2^28405314060 is an apocalyptic number.

28405314060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28405314060 is an abundant number, since it is smaller than the sum of its proper divisors (51129565476).

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

28405314060 is a wasteful number, since it uses less digits than its factorization.

28405314060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473421913 (or 473421911 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 28405314060 in words is "twenty-eight billion, four hundred five million, three hundred fourteen thousand, sixty".