74589652789 has 2 divisors, whose sum is σ = 74589652790. Its totient is φ = 74589652788.

The previous prime is 74589652771. The next prime is 74589652793. The reversal of 74589652789 is 98725698547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67266572164 + 7323080625 = 259358^2 + 85575^2 .

It is a cyclic number.

It is not a de Polignac number, because 74589652789 - 2¹¹ = 74589650741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74589652289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37294826394 + 37294826395.

It is an arithmetic number, because the mean of its divisors is an integer number (37294826395).

Almost surely, 2^74589652789 is an apocalyptic number.

It is an amenable number.

74589652789 is a deficient number, since it is larger than the sum of its proper divisors (1).

74589652789 is an equidigital number, since it uses as much as digits as its factorization.

74589652789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 304819200, while the sum is 70.

The spelling of 74589652789 in words is "seventy-four billion, five hundred eighty-nine million, six hundred fifty-two thousand, seven hundred eighty-nine".