73528153528 has 8 divisors (see below), whose sum is σ = 137865287880. Its totient is φ = 36764076760.

The previous prime is 73528153519. The next prime is 73528153547. The reversal of 73528153528 is 82535182537.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×73528153528² (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 as a sum of consecutive naturals, namely, 4595509588 + ... + 4595509603.

It is an arithmetic number, because the mean of its divisors is an integer number (17233160985).

Almost surely, 2^73528153528 is an apocalyptic number.

It is an amenable number.

73528153528 is a deficient number, since it is larger than the sum of its proper divisors (64337134352).

73528153528 is a wasteful number, since it uses less digits than its factorization.

73528153528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191019197 (or 9191019193 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 49.

The spelling of 73528153528 in words is "seventy-three billion, five hundred twenty-eight million, one hundred fifty-three thousand, five hundred twenty-eight".