73575140068 has 6 divisors (see below), whose sum is σ = 128756495126. Its totient is φ = 36787570032.

The previous prime is 73575140047. The next prime is 73575140077. The reversal of 73575140068 is 86004157537.

It can be written as a sum of positive squares in only one way, i.e., 55638430884 + 17936709184 = 235878^2 + 133928^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9196892505 + ... + 9196892512.

Almost surely, 2^73575140068 is an apocalyptic number.

It is an amenable number.

73575140068 is a deficient number, since it is larger than the sum of its proper divisors (55181355058).

73575140068 is a wasteful number, since it uses less digits than its factorization.

73575140068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18393785021 (or 18393785019 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 73575140068 in words is "seventy-three billion, five hundred seventy-five million, one hundred forty thousand, sixty-eight".