73034000640 has 108 divisors (see below), whose sum is σ = 252690074364. Its totient is φ = 19475730432.

The previous prime is 73034000597. The next prime is 73034000647. The reversal of 73034000640 is 4600043037.

It can be written as a sum of positive squares in 2 ways, for example, as 29876431104 + 43157569536 = 172848^2 + 207744^2 .

It is a super-3 number, since 3×73034000640³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (73034000647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3158359 + ... + 3181398.

Almost surely, 2^73034000640 is an apocalyptic number.

It is an amenable number.

73034000640 is an abundant number, since it is smaller than the sum of its proper divisors (179656073724).

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

73034000640 is a wasteful number, since it uses less digits than its factorization.

73034000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339784 (or 6339767 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

Adding to 73034000640 its reverse (4600043037), we get a palindrome (77634043677).

The spelling of 73034000640 in words is "seventy-three billion, thirty-four million, six hundred forty", and thus it is an aban number.