73724835816 has 96 divisors (see below), whose sum is σ = 215915207040. Its totient is φ = 22637228544.

The previous prime is 73724835787. The next prime is 73724835817. The reversal of 73724835816 is 61853842737.

It is a happy number.

73724835816 is a `hidden beast` number, since 7 + 37 + 24 + 8 + 3 + 581 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (73724835817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583246 + ... + 698301.

It is an arithmetic number, because the mean of its divisors is an integer number (2249116740).

Almost surely, 2^73724835816 is an apocalyptic number.

It is an amenable number.

73724835816 is an abundant number, since it is smaller than the sum of its proper divisors (142190371224).

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

73724835816 is a wasteful number, since it uses less digits than its factorization.

73724835816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281623 (or 1281616 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 73724835816 in words is "seventy-three billion, seven hundred twenty-four million, eight hundred thirty-five thousand, eight hundred sixteen".