73054645520 has 40 divisors (see below), whose sum is σ = 173465933184. Its totient is φ = 28600115072.

The previous prime is 73054645511. The next prime is 73054645541. The reversal of 73054645520 is 2554645037.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9710954 + ... + 9718473.

Almost surely, 2^73054645520 is an apocalyptic number.

It is an amenable number.

73054645520 is an abundant number, since it is smaller than the sum of its proper divisors (100411287664).

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

73054645520 is a wasteful number, since it uses less digits than its factorization.

73054645520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19429487 (or 19429481 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 73054645520 in words is "seventy-three billion, fifty-four million, six hundred forty-five thousand, five hundred twenty".