73542715224 has 128 divisors (see below), whose sum is σ = 218109542400. Its totient is φ = 20407818240.

The previous prime is 73542715223. The next prime is 73542715273. The reversal of 73542715224 is 42251724537.

It is a super-2 number, since 2×73542715224² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73542715223) 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, 55384 + ... + 387495.

It is an arithmetic number, because the mean of its divisors is an integer number (1703980800).

Almost surely, 2^73542715224 is an apocalyptic number.

73542715224 is a gapful number since it is divisible by the number (74) 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 73542715224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109054771200).

73542715224 is an abundant number, since it is smaller than the sum of its proper divisors (144566827176).

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

73542715224 is a wasteful number, since it uses less digits than its factorization.

73542715224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442953 (or 442949 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

The spelling of 73542715224 in words is "seventy-three billion, five hundred forty-two million, seven hundred fifteen thousand, two hundred twenty-four".