74594564819 has 2 divisors, whose sum is σ = 74594564820. Its totient is φ = 74594564818.

The previous prime is 74594564677. The next prime is 74594564833. The reversal of 74594564819 is 91846549547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74594564819 is a prime.

It is a super-2 number, since 2×74594564819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74594564899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37297282409 + 37297282410.

It is an arithmetic number, because the mean of its divisors is an integer number (37297282410).

Almost surely, 2^74594564819 is an apocalyptic number.

74594564819 is a deficient number, since it is larger than the sum of its proper divisors (1).

74594564819 is an equidigital number, since it uses as much as digits as its factorization.

74594564819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 62.

The spelling of 74594564819 in words is "seventy-four billion, five hundred ninety-four million, five hundred sixty-four thousand, eight hundred nineteen".