28080166862 has 32 divisors (see below), whose sum is σ = 46674817920. Its totient is φ = 12563722080.

The previous prime is 28080166859. The next prime is 28080166867. The reversal of 28080166862 is 26866108082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080166867) 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, 331589 + ... + 407567.

It is an arithmetic number, because the mean of its divisors is an integer number (1458588060).

Almost surely, 2^28080166862 is an apocalyptic number.

28080166862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28080166862 is a deficient number, since it is larger than the sum of its proper divisors (18594651058).

28080166862 is a wasteful number, since it uses less digits than its factorization.

28080166862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76256.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 28080166862 in words is "twenty-eight billion, eighty million, one hundred sixty-six thousand, eight hundred sixty-two".