74594564899 has 2 divisors, whose sum is σ = 74594564900. Its totient is φ = 74594564898.

The previous prime is 74594564857. The next prime is 74594564929. The reversal of 74594564899 is 99846549547.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74594564899 is a prime.

It is a super-2 number, since 2×74594564899² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74594564819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37297282449 + 37297282450.

It is an arithmetic number, because the mean of its divisors is an integer number (37297282450).

Almost surely, 2^74594564899 is an apocalyptic number.

74594564899 is a deficient number, since it is larger than the sum of its proper divisors (1).

74594564899 is an equidigital number, since it uses as much as digits as its factorization.

74594564899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 391910400, while the sum is 70.

The spelling of 74594564899 in words is "seventy-four billion, five hundred ninety-four million, five hundred sixty-four thousand, eight hundred ninety-nine".