73497837855744 has 99 divisors (see below), whose sum is σ = 212225788272043. Its totient is φ = 24499004946432.

The previous prime is 73497837855713. The next prime is 73497837855749. The reversal of 73497837855744 is 44755873879437.

The square root of 73497837855744 is 8573088.

It is a perfect power (a square), and thus also a powerful number.

73497837855744 is a `hidden beast` number, since 7 + 3 + 4 + 9 + 7 + 8 + 37 + 8 + 5 + 574 + 4 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73497837855749) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 822971797 + ... + 823061099.

Almost surely, 2^{73497837855744} is an apocalyptic number.

73497837855744 is the 8573088-th square number.

It is an amenable number.

73497837855744 is an abundant number, since it is smaller than the sum of its proper divisors (138727950416299).

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

73497837855744 is an frugal number, since it uses more digits than its factorization.

73497837855744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178632 (or 89308 counting only the distinct ones).

The product of its digits is 19914854400, while the sum is 81.

The spelling of 73497837855744 in words is "seventy-three trillion, four hundred ninety-seven billion, eight hundred thirty-seven million, eight hundred fifty-five thousand, seven hundred forty-four".