74816815001 has 4 divisors (see below), whose sum is σ = 74823321600. Its totient is φ = 74810308404.

The previous prime is 74816814983. The next prime is 74816815061. The reversal of 74816815001 is 10051861847.

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.

It is a cyclic number.

It is not a de Polignac number, because 74816815001 - 2¹⁰ = 74816813977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74816815001.

It is not an unprimeable number, because it can be changed into a prime (74816815061) 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, 3236021 + ... + 3259058.

It is an arithmetic number, because the mean of its divisors is an integer number (18705830400).

Almost surely, 2^74816815001 is an apocalyptic number.

It is an amenable number.

74816815001 is a deficient number, since it is larger than the sum of its proper divisors (6506599).

74816815001 is a wasteful number, since it uses less digits than its factorization.

74816815001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506598.

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 74816815001 in words is "seventy-four billion, eight hundred sixteen million, eight hundred fifteen thousand, one".