28163554406 has 16 divisors (see below), whose sum is σ = 45497743200. Its totient is φ = 12997771968.

The previous prime is 28163554333. The next prime is 28163554411. The reversal of 28163554406 is 60445536182.

It is a congruent number.

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, 783455 + ... + 818613.

It is an arithmetic number, because the mean of its divisors is an integer number (2843608950).

Almost surely, 2^28163554406 is an apocalyptic number.

28163554406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28163554406 is a deficient number, since it is larger than the sum of its proper divisors (17334188794).

28163554406 is a wasteful number, since it uses less digits than its factorization.

28163554406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65983.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 28163554406 in words is "twenty-eight billion, one hundred sixty-three million, five hundred fifty-four thousand, four hundred six".