79982061749 has 2 divisors, whose sum is σ = 79982061750. Its totient is φ = 79982061748.

The previous prime is 79982061697. The next prime is 79982061751. The reversal of 79982061749 is 94716028997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64659335524 + 15322726225 = 254282^2 + 123785^2 .

It is a cyclic number.

It is not a de Polignac number, because 79982061749 - 2²⁴ = 79965284533 is a prime.

Together with 79982061751, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79982061691 and 79982061700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79982061769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39991030874 + 39991030875.

It is an arithmetic number, because the mean of its divisors is an integer number (39991030875).

Almost surely, 2^79982061749 is an apocalyptic number.

It is an amenable number.

79982061749 is a deficient number, since it is larger than the sum of its proper divisors (1).

79982061749 is an equidigital number, since it uses as much as digits as its factorization.

79982061749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The spelling of 79982061749 in words is "seventy-nine billion, nine hundred eighty-two million, sixty-one thousand, seven hundred forty-nine".