74859780509 has 8 divisors (see below), whose sum is σ = 75259951872. Its totient is φ = 74460185280.

The previous prime is 74859780473. The next prime is 74859780529. The reversal of 74859780509 is 90508795847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74859780509 - 2²⁰ = 74858731933 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 (74859780529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117797 + ... + 404469.

It is an arithmetic number, because the mean of its divisors is an integer number (9407493984).

Almost surely, 2^74859780509 is an apocalyptic number.

It is an amenable number.

74859780509 is a deficient number, since it is larger than the sum of its proper divisors (400171363).

74859780509 is a wasteful number, since it uses less digits than its factorization.

74859780509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288067.

The product of its (nonzero) digits is 25401600, while the sum is 62.

The spelling of 74859780509 in words is "seventy-four billion, eight hundred fifty-nine million, seven hundred eighty thousand, five hundred nine".