82011730572 has 36 divisors (see below), whose sum is σ = 210147264600. Its totient is φ = 26962759872.

The previous prime is 82011730571. The next prime is 82011730573. The reversal of 82011730572 is 27503711028.

82011730572 is a `hidden beast` number, since 8 + 2 + 0 + 11 + 73 + 0 + 572 = 666.

It is an interprime number because it is at equal distance from previous prime (82011730571) and next prime (82011730573).

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

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

It is not an unprimeable number, because it can be changed into a prime (82011730571) 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, 15600822 + ... + 15606077.

Almost surely, 2^82011730572 is an apocalyptic number.

It is an amenable number.

82011730572 is an abundant number, since it is smaller than the sum of its proper divisors (128135534028).

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

82011730572 is a wasteful number, since it uses less digits than its factorization.

82011730572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31206982 (or 31206977 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 82011730572 in words is "eighty-two billion, eleven million, seven hundred thirty thousand, five hundred seventy-two".