73525303670640 has 80 divisors (see below), whose sum is σ = 228158440544256. Its totient is φ = 19586962771200.

The previous prime is 73525303670639. The next prime is 73525303670699. The reversal of 73525303670640 is 4607630352537.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154330996 + ... + 154806675.

Almost surely, 2^{73525303670640} is an apocalyptic number.

It is an amenable number.

73525303670640 is an abundant number, since it is smaller than the sum of its proper divisors (154633136873616).

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

73525303670640 is a wasteful number, since it uses less digits than its factorization.

73525303670640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309138678 (or 309138672 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 51.

The spelling of 73525303670640 in words is "seventy-three trillion, five hundred twenty-five billion, three hundred three million, six hundred seventy thousand, six hundred forty".