74339634672 has 120 divisors (see below), whose sum is σ = 211840012800. Its totient is φ = 24329253504.

The previous prime is 74339634647. The next prime is 74339634689. The reversal of 74339634672 is 27643693347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7326979 + ... + 7337117.

It is an arithmetic number, because the mean of its divisors is an integer number (1765333440).

Almost surely, 2^74339634672 is an apocalyptic number.

74339634672 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 74339634672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105920006400).

74339634672 is an abundant number, since it is smaller than the sum of its proper divisors (137500378128).

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

74339634672 is a wasteful number, since it uses less digits than its factorization.

74339634672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11075 (or 11066 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 54.

The spelling of 74339634672 in words is "seventy-four billion, three hundred thirty-nine million, six hundred thirty-four thousand, six hundred seventy-two".