73742740480 has 352 divisors, whose sum is σ = 194452554240. Its totient is φ = 26754416640.

The previous prime is 73742740447. The next prime is 73742740481. The reversal of 73742740480 is 8404724737.

It is a self number, because there is not a number n which added to its sum of digits gives 73742740480.

It is not an unprimeable number, because it can be changed into a prime (73742740481) 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, 170306344 + ... + 170306776.

Almost surely, 2^73742740480 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 73742740480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97226277120).

73742740480 is an abundant number, since it is smaller than the sum of its proper divisors (120709813760).

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

73742740480 is a wasteful number, since it uses less digits than its factorization.

73742740480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 73742740480 in words is "seventy-three billion, seven hundred forty-two million, seven hundred forty thousand, four hundred eighty".