28193867511744 has 224 divisors, whose sum is σ = 87112678809600. Its totient is φ = 7956747279360.

The previous prime is 28193867511713. The next prime is 28193867511773. The reversal of 28193867511744 is 44711576839182.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3586672 + ... + 8321775.

Almost surely, 2^{28193867511744} is an apocalyptic number.

28193867511744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28193867511744 is an abundant number, since it is smaller than the sum of its proper divisors (58918811297856).

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

28193867511744 is a wasteful number, since it uses less digits than its factorization.

28193867511744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908551 (or 11908541 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 66.

The spelling of 28193867511744 in words is "twenty-eight trillion, one hundred ninety-three billion, eight hundred sixty-seven million, five hundred eleven thousand, seven hundred forty-four".