74654364672 has 528 divisors, whose sum is σ = 248312563200. Its totient is φ = 21446000640.

The previous prime is 74654364649. The next prime is 74654364677. The reversal of 74654364672 is 27646345647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74654364677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92279404 + ... + 92280212.

Almost surely, 2^74654364672 is an apocalyptic number.

74654364672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74654364672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124156281600).

74654364672 is an abundant number, since it is smaller than the sum of its proper divisors (173658198528).

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

74654364672 is a wasteful number, since it uses less digits than its factorization.

74654364672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 881 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 54.

The spelling of 74654364672 in words is "seventy-four billion, six hundred fifty-four million, three hundred sixty-four thousand, six hundred seventy-two".