74373601969 has 2 divisors, whose sum is σ = 74373601970. Its totient is φ = 74373601968.

The previous prime is 74373601963. The next prime is 74373602027. The reversal of 74373601969 is 96910637347.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69624738225 + 4748863744 = 263865^2 + 68912^2 .

It is an emirp because it is prime and its reverse (96910637347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74373601969 - 2²³ = 74365213361 is a prime.

It is a super-2 number, since 2×74373601969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74373601963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37186800984 + 37186800985.

It is an arithmetic number, because the mean of its divisors is an integer number (37186800985).

Almost surely, 2^74373601969 is an apocalyptic number.

It is an amenable number.

74373601969 is a deficient number, since it is larger than the sum of its proper divisors (1).

74373601969 is an equidigital number, since it uses as much as digits as its factorization.

74373601969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 55.

The spelling of 74373601969 in words is "seventy-four billion, three hundred seventy-three million, six hundred one thousand, nine hundred sixty-nine".