82113525057890 has 32 divisors (see below), whose sum is σ = 148797675000000. Its totient is φ = 32624674060608.

The previous prime is 82113525057857. The next prime is 82113525057923. The reversal of 82113525057890 is 9875052531128.

It is an interprime number because it is at equal distance from previous prime (82113525057857) and next prime (82113525057923).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241953941 + ... + 242293079.

It is an arithmetic number, because the mean of its divisors is an integer number (4649927343750).

Almost surely, 2^{82113525057890} is an apocalyptic number.

82113525057890 is a deficient number, since it is larger than the sum of its proper divisors (66684149942110).

82113525057890 is a wasteful number, since it uses less digits than its factorization.

82113525057890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501794.

The product of its (nonzero) digits is 6048000, while the sum is 56.

The spelling of 82113525057890 in words is "eighty-two trillion, one hundred thirteen billion, five hundred twenty-five million, fifty-seven thousand, eight hundred ninety".