73820399579 has 2 divisors, whose sum is σ = 73820399580. Its totient is φ = 73820399578.

The previous prime is 73820399573. The next prime is 73820399621. The reversal of 73820399579 is 97599302837.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73820399579 - 2³² = 69525432283 is a prime.

It is not a weakly prime, because it can be changed into another prime (73820399573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36910199789 + 36910199790.

It is an arithmetic number, because the mean of its divisors is an integer number (36910199790).

Almost surely, 2^73820399579 is an apocalyptic number.

73820399579 is a deficient number, since it is larger than the sum of its proper divisors (1).

73820399579 is an equidigital number, since it uses as much as digits as its factorization.

73820399579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25719120, while the sum is 62.

The spelling of 73820399579 in words is "seventy-three billion, eight hundred twenty million, three hundred ninety-nine thousand, five hundred seventy-nine".