28192394412 has 216 divisors, whose sum is σ = 92584464336. Its totient is φ = 7435193472.

The previous prime is 28192394333. The next prime is 28192394473. The reversal of 28192394412 is 21449329182.

It is a super-2 number, since 2×28192394412² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 596398 + ... + 641930.

Almost surely, 2^28192394412 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 28192394412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46292232168).

28192394412 is an abundant number, since it is smaller than the sum of its proper divisors (64392069924).

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

28192394412 is a wasteful number, since it uses less digits than its factorization.

28192394412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45579 (or 45558 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The spelling of 28192394412 in words is "twenty-eight billion, one hundred ninety-two million, three hundred ninety-four thousand, four hundred twelve".