28102372092 has 192 divisors, whose sum is σ = 76485427200. Its totient is φ = 8912825280.

The previous prime is 28102372057. The next prime is 28102372093. The reversal of 28102372092 is 29027320182.

28102372092 is a `hidden beast` number, since 281 + 0 + 2 + 372 + 0 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28102372093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78279409 + ... + 78279767.

It is an arithmetic number, because the mean of its divisors is an integer number (398361600).

Almost surely, 2^28102372092 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 28102372092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38242713600).

28102372092 is an abundant number, since it is smaller than the sum of its proper divisors (48383055108).

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

28102372092 is a wasteful number, since it uses less digits than its factorization.

28102372092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

It can be divided in two parts, 2810237 and 2092, that added together give a square (2812329 = 1677²).

The spelling of 28102372092 in words is "twenty-eight billion, one hundred two million, three hundred seventy-two thousand, ninety-two".