74431984923868 has 192 divisors, whose sum is σ = 154331387965440. Its totient is φ = 30965595494400.

The previous prime is 74431984923827. The next prime is 74431984923869. The reversal of 74431984923868 is 86832948913447.

It is a junction number, because it is equal to n+sod(n) for n = 74431984923794 and 74431984923803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74431984923869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51941370480 + ... + 51941371912.

It is an arithmetic number, because the mean of its divisors is an integer number (803809312320).

Almost surely, 2^{74431984923868} is an apocalyptic number.

It is an amenable number.

74431984923868 is an abundant number, since it is smaller than the sum of its proper divisors (79899403041572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74431984923868 is a wasteful number, since it uses less digits than its factorization.

74431984923868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2986 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 76.

The spelling of 74431984923868 in words is "seventy-four trillion, four hundred thirty-one billion, nine hundred eighty-four million, nine hundred twenty-three thousand, eight hundred sixty-eight".