72574660843 has 4 divisors (see below), whose sum is σ = 73055287888. Its totient is φ = 72094033800.

The previous prime is 72574660841. The next prime is 72574660859. The reversal of 72574660843 is 34806647527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34806647527 = 389 ⋅89477243.

It is a cyclic number.

It is not a de Polignac number, because 72574660843 - 2¹ = 72574660841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72574660841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240313296 + ... + 240313597.

It is an arithmetic number, because the mean of its divisors is an integer number (18263821972).

Almost surely, 2^72574660843 is an apocalyptic number.

72574660843 is a deficient number, since it is larger than the sum of its proper divisors (480627045).

72574660843 is a wasteful number, since it uses less digits than its factorization.

72574660843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480627044.

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 72574660843 in words is "seventy-two billion, five hundred seventy-four million, six hundred sixty thousand, eight hundred forty-three".