74534190336 has 144 divisors (see below), whose sum is σ = 221125806720. Its totient is φ = 24764129280.

The previous prime is 74534190331. The next prime is 74534190361. The reversal of 74534190336 is 63309143547.

74534190336 is a `hidden beast` number, since 7 + 453 + 4 + 190 + 3 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 74534190291 and 74534190300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74534190331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2132296 + ... + 2166968.

It is an arithmetic number, because the mean of its divisors is an integer number (1535595880).

Almost surely, 2^74534190336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74534190336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110562903360).

74534190336 is an abundant number, since it is smaller than the sum of its proper divisors (146591616384).

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

74534190336 is a wasteful number, since it uses less digits than its factorization.

74534190336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35009 (or 34989 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 74534190336 in words is "seventy-four billion, five hundred thirty-four million, one hundred ninety thousand, three hundred thirty-six".