73698997320 has 192 divisors, whose sum is σ = 264238556400. Its totient is φ = 17698775040.

The previous prime is 73698997319. The next prime is 73698997321. The reversal of 73698997320 is 2379989637.

It is an interprime number because it is at equal distance from previous prime (73698997319) and next prime (73698997321).

It can be written as a sum of positive squares in 8 ways, for example, as 29095236 + 73669902084 = 5394^2 + 271422^2 .

It is not an unprimeable number, because it can be changed into a prime (73698997321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165 + ... + 383924.

Almost surely, 2^73698997320 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 73698997320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132119278200).

73698997320 is an abundant number, since it is smaller than the sum of its proper divisors (190539559080).

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

73698997320 is a wasteful number, since it uses less digits than its factorization.

73698997320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384160 (or 384153 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The spelling of 73698997320 in words is "seventy-three billion, six hundred ninety-eight million, nine hundred ninety-seven thousand, three hundred twenty".