74189597823 has 48 divisors (see below), whose sum is σ = 122375964672. Its totient is φ = 42899976000.

The previous prime is 74189597809. The next prime is 74189597831. The reversal of 74189597823 is 32879598147.

74189597823 is a `hidden beast` number, since 7 + 4 + 18 + 9 + 597 + 8 + 23 = 666.

It is not a de Polignac number, because 74189597823 - 2¹³ = 74189589631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74189597873) 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 47 ways as a sum of consecutive naturals, for example, 47661 + ... + 388137.

It is an arithmetic number, because the mean of its divisors is an integer number (2549499264).

Almost surely, 2^74189597823 is an apocalyptic number.

74189597823 is a deficient number, since it is larger than the sum of its proper divisors (48186366849).

74189597823 is a wasteful number, since it uses less digits than its factorization.

74189597823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340596 (or 340593 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 74189597823 in words is "seventy-four billion, one hundred eighty-nine million, five hundred ninety-seven thousand, eight hundred twenty-three".