73644793497 has 36 divisors (see below), whose sum is σ = 123079487440. Its totient is φ = 42284080080.

The previous prime is 73644793493. The next prime is 73644793507. The reversal of 73644793497 is 79439744637.

73644793497 is a `hidden beast` number, since 7 + 36 + 44 + 79 + 3 + 497 = 666.

It is not a de Polignac number, because 73644793497 - 2² = 73644793493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73644793493) 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 in 35 ways as a sum of consecutive naturals, for example, 1758943 + ... + 1800324.

Almost surely, 2^73644793497 is an apocalyptic number.

It is an amenable number.

73644793497 is a deficient number, since it is larger than the sum of its proper divisors (49434693943).

73644793497 is a wasteful number, since it uses less digits than its factorization.

73644793497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559314 (or 3559300 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 63.

The spelling of 73644793497 in words is "seventy-three billion, six hundred forty-four million, seven hundred ninety-three thousand, four hundred ninety-seven".