72741292193 has 4 divisors (see below), whose sum is σ = 72798167040. Its totient is φ = 72684417348.

The previous prime is 72741292189. The next prime is 72741292199. The reversal of 72741292193 is 39129214727.

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: 39129214727 = 97859 ⋅399853.

It is a cyclic number.

It is not a de Polignac number, because 72741292193 - 2² = 72741292189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72741292199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28435505 + ... + 28438062.

It is an arithmetic number, because the mean of its divisors is an integer number (18199541760).

Almost surely, 2^72741292193 is an apocalyptic number.

It is an amenable number.

72741292193 is a deficient number, since it is larger than the sum of its proper divisors (56874847).

72741292193 is a wasteful number, since it uses less digits than its factorization.

72741292193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56874846.

The product of its digits is 381024, while the sum is 47.

The spelling of 72741292193 in words is "seventy-two billion, seven hundred forty-one million, two hundred ninety-two thousand, one hundred ninety-three".