73122215700 has 72 divisors (see below), whose sum is σ = 217285002592. Its totient is φ = 18972247680.

The previous prime is 73122215689. The next prime is 73122215701. The reversal of 73122215700 is 751222137.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73122215701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3282694 + ... + 3304893.

Almost surely, 2^73122215700 is an apocalyptic number.

It is an amenable number.

73122215700 is an abundant number, since it is smaller than the sum of its proper divisors (144162786892).

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

73122215700 is a wasteful number, since it uses less digits than its factorization.

73122215700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587641 (or 6587634 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

Adding to 73122215700 its reverse (751222137), we get a palindrome (73873437837).

The spelling of 73122215700 in words is "seventy-three billion, one hundred twenty-two million, two hundred fifteen thousand, seven hundred".