73668851530 has 16 divisors (see below), whose sum is σ = 132643446984. Its totient is φ = 29458759680.

The previous prime is 73668851521. The next prime is 73668851533. The reversal of 73668851530 is 3515886637.

It can be written as a sum of positive squares in 4 ways, for example, as 70932201561 + 2736649969 = 266331^2 + 52313^2 .

It is not an unprimeable number, because it can be changed into a prime (73668851533) 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, 1062327 + ... + 1129546.

Almost surely, 2^73668851530 is an apocalyptic number.

73668851530 is a deficient number, since it is larger than the sum of its proper divisors (58974595454).

73668851530 is a wasteful number, since it uses less digits than its factorization.

73668851530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195241.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 73668851530 in words is "seventy-three billion, six hundred sixty-eight million, eight hundred fifty-one thousand, five hundred thirty".