73749219312 has 160 divisors (see below), whose sum is σ = 204222643200. Its totient is φ = 22891488256.

The previous prime is 73749219311. The next prime is 73749219337. The reversal of 73749219312 is 21391294737.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73749219311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4344313 + ... + 4361255.

It is an arithmetic number, because the mean of its divisors is an integer number (1276391520).

Almost surely, 2^73749219312 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 73749219312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102111321600).

73749219312 is an abundant number, since it is smaller than the sum of its proper divisors (130473423888).

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

73749219312 is a wasteful number, since it uses less digits than its factorization.

73749219312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17095 (or 17089 counting only the distinct ones).

The product of its digits is 571536, while the sum is 48.

The spelling of 73749219312 in words is "seventy-three billion, seven hundred forty-nine million, two hundred nineteen thousand, three hundred twelve".