72454966593 has 4 divisors (see below), whose sum is σ = 96606622128. Its totient is φ = 48303311060.

The previous prime is 72454966547. The next prime is 72454966601. The reversal of 72454966593 is 39566945427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39566945427 = 3 ⋅13188981809.

It is a cyclic number.

It is not a de Polignac number, because 72454966593 - 2¹⁷ = 72454835521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72454966513) 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 3 ways as a sum of consecutive naturals, for example, 12075827763 + ... + 12075827768.

It is an arithmetic number, because the mean of its divisors is an integer number (24151655532).

Almost surely, 2^72454966593 is an apocalyptic number.

It is an amenable number.

72454966593 is a deficient number, since it is larger than the sum of its proper divisors (24151655535).

72454966593 is a wasteful number, since it uses less digits than its factorization.

72454966593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24151655534.

The product of its digits is 48988800, while the sum is 60.

The spelling of 72454966593 in words is "seventy-two billion, four hundred fifty-four million, nine hundred sixty-six thousand, five hundred ninety-three".