74273754204809 has 4 divisors (see below), whose sum is σ = 74273780715216. Its totient is φ = 74273727694404.

The previous prime is 74273754204763. The next prime is 74273754204823. The reversal of 74273754204809 is 90840245737247.

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 a de Polignac number, because none of the positive numbers 2^k-74273754204809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74273754204829) 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, 8479019 + ... + 14847264.

It is an arithmetic number, because the mean of its divisors is an integer number (18568445178804).

Almost surely, 2^{74273754204809} is an apocalyptic number.

It is an amenable number.

74273754204809 is a deficient number, since it is larger than the sum of its proper divisors (26510407).

74273754204809 is a wasteful number, since it uses less digits than its factorization.

74273754204809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26510406.

The product of its (nonzero) digits is 94832640, while the sum is 62.

The spelling of 74273754204809 in words is "seventy-four trillion, two hundred seventy-three billion, seven hundred fifty-four million, two hundred four thousand, eight hundred nine".