82572134400 has 1728 divisors, whose sum is σ = 375107241600. Its totient is φ = 17712414720.

The previous prime is 82572134383. The next prime is 82572134413. The reversal of 82572134400 is 443127528.

It is a happy number.

82572134400 is a `hidden beast` number, since 82 + 572 + 1 + 3 + 4 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1557964774 + ... + 1557964826.

It is an arithmetic number, because the mean of its divisors is an integer number (217075950).

Almost surely, 2^82572134400 is an apocalyptic number.

82572134400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82572134400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187553620800).

82572134400 is an abundant number, since it is smaller than the sum of its proper divisors (292535107200).

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

82572134400 is a wasteful number, since it uses less digits than its factorization.

82572134400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 82572134400 in words is "eighty-two billion, five hundred seventy-two million, one hundred thirty-four thousand, four hundred".