73699369972 has 6 divisors (see below), whose sum is σ = 128973897458. Its totient is φ = 36849684984.

The previous prime is 73699369967. The next prime is 73699369979. The reversal of 73699369972 is 27996399637.

It can be written as a sum of positive squares in only one way, i.e., 72655046116 + 1044323856 = 269546^2 + 32316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73699369979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9212421243 + ... + 9212421250.

Almost surely, 2^73699369972 is an apocalyptic number.

It is an amenable number.

73699369972 is a deficient number, since it is larger than the sum of its proper divisors (55274527486).

73699369972 is a wasteful number, since it uses less digits than its factorization.

73699369972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424842497 (or 18424842495 counting only the distinct ones).

The product of its digits is 208324872, while the sum is 70.

The spelling of 73699369972 in words is "seventy-three billion, six hundred ninety-nine million, three hundred sixty-nine thousand, nine hundred seventy-two".