73491077568 has 56 divisors (see below), whose sum is σ = 194476768272. Its totient is φ = 24493041664.

The previous prime is 73491077563. The next prime is 73491077579. The reversal of 73491077568 is 86577019437.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73491077563) 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, 1300396 + ... + 1355732.

Almost surely, 2^73491077568 is an apocalyptic number.

It is an amenable number.

73491077568 is an abundant number, since it is smaller than the sum of its proper divisors (120985690704).

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

73491077568 is a wasteful number, since it uses less digits than its factorization.

73491077568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62269 (or 62259 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 73491077568 in words is "seventy-three billion, four hundred ninety-one million, seventy-seven thousand, five hundred sixty-eight".