65879475799 has 2 divisors, whose sum is σ = 65879475800. Its totient is φ = 65879475798.

The previous prime is 65879475707. The next prime is 65879475821. The reversal of 65879475799 is 99757497856.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65879475799 - 2¹³ = 65879467607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65879476799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32939737899 + 32939737900.

It is an arithmetic number, because the mean of its divisors is an integer number (32939737900).

Almost surely, 2^65879475799 is an apocalyptic number.

65879475799 is a deficient number, since it is larger than the sum of its proper divisors (1).

65879475799 is an equidigital number, since it uses as much as digits as its factorization.

65879475799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200225600, while the sum is 76.

The spelling of 65879475799 in words is "sixty-five billion, eight hundred seventy-nine million, four hundred seventy-five thousand, seven hundred ninety-nine".