5199746779 has 2 divisors, whose sum is σ = 5199746780. Its totient is φ = 5199746778.

The previous prime is 5199746743. The next prime is 5199746801. The reversal of 5199746779 is 9776479915.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5199746779 - 2²³ = 5191358171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5199746779.

It is not a weakly prime, because it can be changed into another prime (5199746579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2599873389 + 2599873390.

It is an arithmetic number, because the mean of its divisors is an integer number (2599873390).

Almost surely, 2^5199746779 is an apocalyptic number.

5199746779 is a deficient number, since it is larger than the sum of its proper divisors (1).

5199746779 is an equidigital number, since it uses as much as digits as its factorization.

5199746779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30005640, while the sum is 64.

The square root of 5199746779 is about 72109.2697161745. The cubic root of 5199746779 is about 1732.4500884391.

The spelling of 5199746779 in words is "five billion, one hundred ninety-nine million, seven hundred forty-six thousand, seven hundred seventy-nine".