84251428092 has 36 divisors (see below), whose sum is σ = 229351111080. Its totient is φ = 25923516192.

The previous prime is 84251428081. The next prime is 84251428099. The reversal of 84251428092 is 29082415248.

84251428092 is a `hidden beast` number, since 8 + 42 + 514 + 2 + 8 + 0 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84251428099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90011742 + ... + 90012677.

Almost surely, 2^84251428092 is an apocalyptic number.

It is an amenable number.

84251428092 is an abundant number, since it is smaller than the sum of its proper divisors (145099682988).

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

84251428092 is a wasteful number, since it uses less digits than its factorization.

84251428092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180024442 (or 180024437 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 84251428092 in words is "eighty-four billion, two hundred fifty-one million, four hundred twenty-eight thousand, ninety-two".