28018363776 has 64 divisors (see below), whose sum is σ = 80148699120. Its totient is φ = 8621033472.

The previous prime is 28018363771. The next prime is 28018363783. The reversal of 28018363776 is 67736381082.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28018363771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801335 + ... + 2811318.

Almost surely, 2^28018363776 is an apocalyptic number.

28018363776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28018363776 is an abundant number, since it is smaller than the sum of its proper divisors (52130335344).

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

28018363776 is a wasteful number, since it uses less digits than its factorization.

28018363776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612683 (or 5612671 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 28018363776 in words is "twenty-eight billion, eighteen million, three hundred sixty-three thousand, seven hundred seventy-six".