28177613744 has 80 divisors (see below), whose sum is σ = 62844477696. Its totient is φ = 11989036800.

The previous prime is 28177613693. The next prime is 28177613753. The reversal of 28177613744 is 44731677182.

It is a junction number, because it is equal to n+sod(n) for n = 28177613692 and 28177613701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23737919 + ... + 23739105.

Almost surely, 2^28177613744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28177613744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31422238848).

28177613744 is an abundant number, since it is smaller than the sum of its proper divisors (34666863952).

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

28177613744 is a wasteful number, since it uses less digits than its factorization.

28177613744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2548 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The spelling of 28177613744 in words is "twenty-eight billion, one hundred seventy-seven million, six hundred thirteen thousand, seven hundred forty-four".