84722818540 has 24 divisors (see below), whose sum is σ = 178233960240. Its totient is φ = 33828929088.

The previous prime is 84722818517. The next prime is 84722818541. The reversal of 84722818540 is 4581822748.

It is not an unprimeable number, because it can be changed into a prime (84722818541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750855 + ... + 3773374.

It is an arithmetic number, because the mean of its divisors is an integer number (7426415010).

Almost surely, 2^84722818540 is an apocalyptic number.

It is an amenable number.

84722818540 is an abundant number, since it is smaller than the sum of its proper divisors (93511141700).

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

84722818540 is a wasteful number, since it uses less digits than its factorization.

84722818540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524801 (or 7524799 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 84722818540 in words is "eighty-four billion, seven hundred twenty-two million, eight hundred eighteen thousand, five hundred forty".