73057452640 has 24 divisors (see below), whose sum is σ = 172598232240. Its totient is φ = 29222980992.

The previous prime is 73057452583. The next prime is 73057452673. The reversal of 73057452640 is 4625475037.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228304380 + ... + 228304699.

It is an arithmetic number, because the mean of its divisors is an integer number (7191593010).

Almost surely, 2^73057452640 is an apocalyptic number.

It is an amenable number.

73057452640 is an abundant number, since it is smaller than the sum of its proper divisors (99540779600).

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

73057452640 is a wasteful number, since it uses less digits than its factorization.

73057452640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456609094 (or 456609086 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 73057452640 in words is "seventy-three billion, fifty-seven million, four hundred fifty-two thousand, six hundred forty".