73297729372 has 48 divisors (see below), whose sum is σ = 150120331200. Its totient is φ = 31301356800.

The previous prime is 73297729343. The next prime is 73297729399. The reversal of 73297729372 is 27392779237.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290472 + ... + 480592.

It is an arithmetic number, because the mean of its divisors is an integer number (3127506900).

Almost surely, 2^73297729372 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 73297729372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75060165600).

73297729372 is an abundant number, since it is smaller than the sum of its proper divisors (76822601828).

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

73297729372 is a wasteful number, since it uses less digits than its factorization.

73297729372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190427 (or 190411 counting only the distinct ones).

The product of its digits is 14002632, while the sum is 58.

The spelling of 73297729372 in words is "seventy-three billion, two hundred ninety-seven million, seven hundred twenty-nine thousand, three hundred seventy-two".