73239770560 has 168 divisors, whose sum is σ = 192164177520. Its totient is φ = 26567946240.

The previous prime is 73239770551. The next prime is 73239770561. The reversal of 73239770560 is 6507793237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73239770561) 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, 17692971 + ... + 17697109.

It is an arithmetic number, because the mean of its divisors is an integer number (1143834390).

Almost surely, 2^73239770560 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 73239770560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96082088760).

73239770560 is an abundant number, since it is smaller than the sum of its proper divisors (118924406960).

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

73239770560 is a wasteful number, since it uses less digits than its factorization.

73239770560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635 (or 4614 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 49.

The spelling of 73239770560 in words is "seventy-three billion, two hundred thirty-nine million, seven hundred seventy thousand, five hundred sixty".