82619272949 has 2 divisors, whose sum is σ = 82619272950. Its totient is φ = 82619272948.

The previous prime is 82619272943. The next prime is 82619273083. The reversal of 82619272949 is 94927291628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56373004900 + 26246268049 = 237430^2 + 162007^2 .

It is a cyclic number.

It is not a de Polignac number, because 82619272949 - 2²⁸ = 82350837493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82619272943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41309636474 + 41309636475.

It is an arithmetic number, because the mean of its divisors is an integer number (41309636475).

Almost surely, 2^82619272949 is an apocalyptic number.

It is an amenable number.

82619272949 is a deficient number, since it is larger than the sum of its proper divisors (1).

82619272949 is an equidigital number, since it uses as much as digits as its factorization.

82619272949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 82619272949 in words is "eighty-two billion, six hundred nineteen million, two hundred seventy-two thousand, nine hundred forty-nine".