74172737016 has 512 divisors, whose sum is σ = 262889472000. Its totient is φ = 18895680000.

The previous prime is 74172737003. The next prime is 74172737063. The reversal of 74172737016 is 61073727147.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32949891 + ... + 32952141.

It is an arithmetic number, because the mean of its divisors is an integer number (513456000).

Almost surely, 2^74172737016 is an apocalyptic number.

74172737016 is a gapful number since it is divisible by the number (76) 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 74172737016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131444736000).

74172737016 is an abundant number, since it is smaller than the sum of its proper divisors (188716734984).

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

74172737016 is a wasteful number, since it uses less digits than its factorization.

74172737016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360 (or 2350 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 74172737016 in words is "seventy-four billion, one hundred seventy-two million, seven hundred thirty-seven thousand, sixteen".