74889097989799 has 2 divisors, whose sum is σ = 74889097989800. Its totient is φ = 74889097989798.

The previous prime is 74889097989731. The next prime is 74889097989803. The reversal of 74889097989799 is 99798979098847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74889097989799 - 2²¹ = 74889095892647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74889097989698 and 74889097989707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74889097989599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37444548994899 + 37444548994900.

It is an arithmetic number, because the mean of its divisors is an integer number (37444548994900).

Almost surely, 2^{74889097989799} is an apocalyptic number.

74889097989799 is a deficient number, since it is larger than the sum of its proper divisors (1).

74889097989799 is an equidigital number, since it uses as much as digits as its factorization.

74889097989799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373318170624, while the sum is 103.

The spelling of 74889097989799 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-seven million, nine hundred eighty-nine thousand, seven hundred ninety-nine".