73158235572 has 12 divisors (see below), whose sum is σ = 170702549696. Its totient is φ = 24386078520.

The previous prime is 73158235571. The next prime is 73158235613. The reversal of 73158235572 is 27553285137.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73158235571) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3048259804 + ... + 3048259827.

Almost surely, 2^73158235572 is an apocalyptic number.

It is an amenable number.

73158235572 is an abundant number, since it is smaller than the sum of its proper divisors (97544314124).

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

73158235572 is a wasteful number, since it uses less digits than its factorization.

73158235572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096519638 (or 6096519636 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 48.

The spelling of 73158235572 in words is "seventy-three billion, one hundred fifty-eight million, two hundred thirty-five thousand, five hundred seventy-two".