72985880450 has 48 divisors (see below), whose sum is σ = 161892673920. Its totient is φ = 23935739520.

The previous prime is 72985880417. The next prime is 72985880459. The reversal of 72985880450 is 5408858927.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72985880459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4525235 + ... + 4541334.

It is an arithmetic number, because the mean of its divisors is an integer number (3372764040).

Almost surely, 2^72985880450 is an apocalyptic number.

72985880450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72985880450 is an abundant number, since it is smaller than the sum of its proper divisors (88906793470).

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

72985880450 is a wasteful number, since it uses less digits than its factorization.

72985880450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066611 (or 9066606 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 72985880450 in words is "seventy-two billion, nine hundred eighty-five million, eight hundred eighty thousand, four hundred fifty".