73099326720 has 288 divisors, whose sum is σ = 270474769152. Its totient is φ = 16479092736.

The previous prime is 73099326683. The next prime is 73099326739. The reversal of 73099326720 is 2762399037.

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

It is a self number, because there is not a number n which added to its sum of digits gives 73099326720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1943614 + ... + 1980866.

It is an arithmetic number, because the mean of its divisors is an integer number (939148504).

Almost surely, 2^73099326720 is an apocalyptic number.

73099326720 is a gapful number since it is divisible by the number (70) 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 73099326720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135237384576).

73099326720 is an abundant number, since it is smaller than the sum of its proper divisors (197375442432).

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

73099326720 is a wasteful number, since it uses less digits than its factorization.

73099326720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37357 (or 37343 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 48.

The spelling of 73099326720 in words is "seventy-three billion, ninety-nine million, three hundred twenty-six thousand, seven hundred twenty".