73538789680 has 40 divisors (see below), whose sum is σ = 171097767792. Its totient is φ = 29394856704.

The previous prime is 73538789627. The next prime is 73538789689. The reversal of 73538789680 is 8698783537.

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

It is not an unprimeable number, because it can be changed into a prime (73538789689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207927 + ... + 436246.

Almost surely, 2^73538789680 is an apocalyptic number.

It is an amenable number.

73538789680 is an abundant number, since it is smaller than the sum of its proper divisors (97558978112).

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

73538789680 is a wasteful number, since it uses less digits than its factorization.

73538789680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645613 (or 645607 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 73538789680 in words is "seventy-three billion, five hundred thirty-eight million, seven hundred eighty-nine thousand, six hundred eighty".