74575566731 has 8 divisors (see below), whose sum is σ = 78978925584. Its totient is φ = 70174048000.

The previous prime is 74575566727. The next prime is 74575566773. The reversal of 74575566731 is 13766557547.

It is a happy number.

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 74575566731 - 2² = 74575566727 is a prime.

It is a super-3 number, since 3×74575566731³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (74575566721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376145 + ... + 539106.

It is an arithmetic number, because the mean of its divisors is an integer number (9872365698).

Almost surely, 2^74575566731 is an apocalyptic number.

74575566731 is a deficient number, since it is larger than the sum of its proper divisors (4403358853).

74575566731 is a wasteful number, since it uses less digits than its factorization.

74575566731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920061.

The product of its digits is 18522000, while the sum is 56.

The spelling of 74575566731 in words is "seventy-four billion, five hundred seventy-five million, five hundred sixty-six thousand, seven hundred thirty-one".