71984505330 has 96 divisors (see below), whose sum is σ = 194423846400. Its totient is φ = 18952438752.

The previous prime is 71984505317. The next prime is 71984505331. The reversal of 71984505330 is 3350548917.

71984505330 is a `hidden beast` number, since 7 + 198 + 450 + 5 + 3 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (71984505331) 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, 1663711 + ... + 1706429.

It is an arithmetic number, because the mean of its divisors is an integer number (2025248400).

Almost surely, 2^71984505330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71984505330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97211923200).

71984505330 is an abundant number, since it is smaller than the sum of its proper divisors (122439341070).

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

71984505330 is a wasteful number, since it uses less digits than its factorization.

71984505330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42893 (or 42808 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 71984505330 in words is "seventy-one billion, nine hundred eighty-four million, five hundred five thousand, three hundred thirty".