73724835820 has 24 divisors (see below), whose sum is σ = 155310566544. Its totient is φ = 29396903616.

The previous prime is 73724835817. The next prime is 73724835827. The reversal of 73724835820 is 2853842737.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73724835827) 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, 5807922 + ... + 5820601.

It is an arithmetic number, because the mean of its divisors is an integer number (6471273606).

Almost surely, 2^73724835820 is an apocalyptic number.

It is an amenable number.

73724835820 is an abundant number, since it is smaller than the sum of its proper divisors (81585730724).

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

73724835820 is a wasteful number, since it uses less digits than its factorization.

73724835820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11628849 (or 11628847 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 73724835820 in words is "seventy-three billion, seven hundred twenty-four million, eight hundred thirty-five thousand, eight hundred twenty".