73042505012 has 6 divisors (see below), whose sum is σ = 127824383778. Its totient is φ = 36521252504.

The previous prime is 73042504987. The next prime is 73042505021. The reversal of 73042505012 is 21050524037.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72698179876 + 344325136 = 269626^2 + 18556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9130313123 + ... + 9130313130.

It is an arithmetic number, because the mean of its divisors is an integer number (21304063963).

Almost surely, 2^73042505012 is an apocalyptic number.

It is an amenable number.

73042505012 is a deficient number, since it is larger than the sum of its proper divisors (54781878766).

73042505012 is a wasteful number, since it uses less digits than its factorization.

73042505012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18260626257 (or 18260626255 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The spelling of 73042505012 in words is "seventy-three billion, forty-two million, five hundred five thousand, twelve".