72202726134013 has 4 divisors (see below), whose sum is σ = 74154151164700. Its totient is φ = 70251301103328.

The previous prime is 72202726133971. The next prime is 72202726134023. The reversal of 72202726134013 is 31043162720227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51113662981924 + 21089063152089 = 7149382^2 + 4592283^2 .

It is a cyclic number.

It is not a de Polignac number, because 72202726134013 - 2⁹ = 72202726133501 is a prime.

It is a super-3 number, since 3×72202726134013³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72202726134023) 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, 975712515288 + ... + 975712515361.

It is an arithmetic number, because the mean of its divisors is an integer number (18538537791175).

Almost surely, 2^{72202726134013} is an apocalyptic number.

It is an amenable number.

72202726134013 is a deficient number, since it is larger than the sum of its proper divisors (1951425030687).

72202726134013 is a wasteful number, since it uses less digits than its factorization.

72202726134013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951425030686.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 72202726134013 in words is "seventy-two trillion, two hundred two billion, seven hundred twenty-six million, one hundred thirty-four thousand, thirteen".