28491886293192 has 480 divisors, whose sum is σ = 96078913413120. Its totient is φ = 7857267909120.

The previous prime is 28491886293151. The next prime is 28491886293203. The reversal of 28491886293192 is 29139268819482.

28491886293192 is a `hidden beast` number, since 2 + 8 + 491 + 8 + 86 + 29 + 31 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28491886293192.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 376953708 + ... + 377029284.

It is an arithmetic number, because the mean of its divisors is an integer number (200164402944).

Almost surely, 2^{28491886293192} 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 28491886293192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48039456706560).

28491886293192 is an abundant number, since it is smaller than the sum of its proper divisors (67587027119928).

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

28491886293192 is a wasteful number, since it uses less digits than its factorization.

28491886293192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76023 (or 76003 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 72.

It can be divided in two parts, 28491886 and 293192, that added together give a triangular number (28785078 = T₇₅₈₇).

The spelling of 28491886293192 in words is "twenty-eight trillion, four hundred ninety-one billion, eight hundred eighty-six million, two hundred ninety-three thousand, one hundred ninety-two".