74494249999 has 4 divisors (see below), whose sum is σ = 80224576936. Its totient is φ = 68763923064.

The previous prime is 74494249979. The next prime is 74494250003. The reversal of 74494249999 is 99994249447.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74494249999 - 2¹⁷ = 74494118927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74494249909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865163449 + ... + 2865163474.

It is an arithmetic number, because the mean of its divisors is an integer number (20056144234).

Almost surely, 2^74494249999 is an apocalyptic number.

74494249999 is a deficient number, since it is larger than the sum of its proper divisors (5730326937).

74494249999 is a wasteful number, since it uses less digits than its factorization.

74494249999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730326936.

The product of its digits is 211631616, while the sum is 70.

The spelling of 74494249999 in words is "seventy-four billion, four hundred ninety-four million, two hundred forty-nine thousand, nine hundred ninety-nine".