74343012973 has 4 divisors (see below), whose sum is σ = 74453478748. Its totient is φ = 74232547200.

The previous prime is 74343012971. The next prime is 74343013001. The reversal of 74343012973 is 37921034347.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34565502724 + 39777510249 = 185918^2 + 199443^2 .

It is a cyclic number.

It is not a de Polignac number, because 74343012973 - 2¹ = 74343012971 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 (74343012971) 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, 55231878 + ... + 55233223.

It is an arithmetic number, because the mean of its divisors is an integer number (18613369687).

Almost surely, 2^74343012973 is an apocalyptic number.

It is an amenable number.

74343012973 is a deficient number, since it is larger than the sum of its proper divisors (110465775).

74343012973 is a wasteful number, since it uses less digits than its factorization.

74343012973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110465774.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 74343012973 in words is "seventy-four billion, three hundred forty-three million, twelve thousand, nine hundred seventy-three".