73523543516 has 12 divisors (see below), whose sum is σ = 133102966920. Its totient is φ = 35494124400.

The previous prime is 73523543497. The next prime is 73523543531. The reversal of 73523543516 is 61534532537.

It is a happy number.

It is a super-2 number, since 2×73523543516² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316911710 + ... + 316911941.

It is an arithmetic number, because the mean of its divisors is an integer number (11091913910).

Almost surely, 2^73523543516 is an apocalyptic number.

It is an amenable number.

73523543516 is a deficient number, since it is larger than the sum of its proper divisors (59579423404).

73523543516 is a wasteful number, since it uses less digits than its factorization.

73523543516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633823684 (or 633823682 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 44.

The spelling of 73523543516 in words is "seventy-three billion, five hundred twenty-three million, five hundred forty-three thousand, five hundred sixteen".