74677111849 has 2 divisors, whose sum is σ = 74677111850. Its totient is φ = 74677111848.

The previous prime is 74677111799. The next prime is 74677111937. The reversal of 74677111849 is 94811177647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42121405225 + 32555706624 = 205235^2 + 180432^2 .

It is an emirp because it is prime and its reverse (94811177647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74677111849 - 2⁹ = 74677111337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74677111849.

It is not a weakly prime, because it can be changed into another prime (74677117849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37338555924 + 37338555925.

It is an arithmetic number, because the mean of its divisors is an integer number (37338555925).

Almost surely, 2^74677111849 is an apocalyptic number.

It is an amenable number.

74677111849 is a deficient number, since it is larger than the sum of its proper divisors (1).

74677111849 is an equidigital number, since it uses as much as digits as its factorization.

74677111849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 55.

The spelling of 74677111849 in words is "seventy-four billion, six hundred seventy-seven million, one hundred eleven thousand, eight hundred forty-nine".