73641385124 has 24 divisors (see below), whose sum is σ = 129404217600. Its totient is φ = 36668864160.

The previous prime is 73641385123. The next prime is 73641385177. The reversal of 73641385124 is 42158314637.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73641385121) 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 7 ways as a sum of consecutive naturals, for example, 2913059 + ... + 2938229.

It is an arithmetic number, because the mean of its divisors is an integer number (5391842400).

Almost surely, 2^73641385124 is an apocalyptic number.

It is an amenable number.

73641385124 is a deficient number, since it is larger than the sum of its proper divisors (55762832476).

73641385124 is a wasteful number, since it uses less digits than its factorization.

73641385124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163 (or 28161 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The spelling of 73641385124 in words is "seventy-three billion, six hundred forty-one million, three hundred eighty-five thousand, one hundred twenty-four".