72264203557 has 8 divisors (see below), whose sum is σ = 88940558336. Its totient is φ = 57176073072.

The previous prime is 72264203521. The next prime is 72264203563. The reversal of 72264203557 is 75530246227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72264203557 - 2³⁵ = 37904465189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72264203587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397055973 + ... + 397056154.

It is an arithmetic number, because the mean of its divisors is an integer number (11117569792).

Almost surely, 2^72264203557 is an apocalyptic number.

It is an amenable number.

72264203557 is a deficient number, since it is larger than the sum of its proper divisors (16676354779).

72264203557 is a wasteful number, since it uses less digits than its factorization.

72264203557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794112147.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 72264203557 in words is "seventy-two billion, two hundred sixty-four million, two hundred three thousand, five hundred fifty-seven".