74294594869 has 4 divisors (see below), whose sum is σ = 81048648960. Its totient is φ = 67540540780.

The previous prime is 74294594863. The next prime is 74294594887. The reversal of 74294594869 is 96849549247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96849549247 = 11 ⋅8804504477.

It is a cyclic number.

It is not a de Polignac number, because 74294594869 - 2¹⁹ = 74294070581 is a prime.

It is a super-2 number, since 2×74294594869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74294594863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377027029 + ... + 3377027050.

It is an arithmetic number, because the mean of its divisors is an integer number (20262162240).

Almost surely, 2^74294594869 is an apocalyptic number.

It is an amenable number.

74294594869 is a deficient number, since it is larger than the sum of its proper divisors (6754054091).

74294594869 is a wasteful number, since it uses less digits than its factorization.

74294594869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754054090.

The product of its digits is 156764160, while the sum is 67.

The spelling of 74294594869 in words is "seventy-four billion, two hundred ninety-four million, five hundred ninety-four thousand, eight hundred sixty-nine".