72202505493 has 4 divisors (see below), whose sum is σ = 96270007328. Its totient is φ = 48135003660.

The previous prime is 72202505477. The next prime is 72202505509. The reversal of 72202505493 is 39450520227.

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: 39450520227 = 3 ⋅13150173409.

It is an interprime number because it is at equal distance from previous prime (72202505477) and next prime (72202505509).

It is not a de Polignac number, because 72202505493 - 2⁴ = 72202505477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72202501493) 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, 12033750913 + ... + 12033750918.

It is an arithmetic number, because the mean of its divisors is an integer number (24067501832).

Almost surely, 2^72202505493 is an apocalyptic number.

It is an amenable number.

72202505493 is a deficient number, since it is larger than the sum of its proper divisors (24067501835).

72202505493 is a wasteful number, since it uses less digits than its factorization.

72202505493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24067501834.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 72202505493 in words is "seventy-two billion, two hundred two million, five hundred five thousand, four hundred ninety-three".