82549734187 has 2 divisors, whose sum is σ = 82549734188. Its totient is φ = 82549734186.

The previous prime is 82549734107. The next prime is 82549734193. The reversal of 82549734187 is 78143794528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82549734187 is a prime.

It is a super-2 number, since 2×82549734187² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82549734107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41274867093 + 41274867094.

It is an arithmetic number, because the mean of its divisors is an integer number (41274867094).

Almost surely, 2^82549734187 is an apocalyptic number.

82549734187 is a deficient number, since it is larger than the sum of its proper divisors (1).

82549734187 is an equidigital number, since it uses as much as digits as its factorization.

82549734187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 58.

The spelling of 82549734187 in words is "eighty-two billion, five hundred forty-nine million, seven hundred thirty-four thousand, one hundred eighty-seven".