7272522126605 has 16 divisors (see below), whose sum is σ = 9008851968000. Its totient is φ = 5630146942080.

The previous prime is 7272522126503. The next prime is 7272522126703. The reversal of 7272522126605 is 5066212252727.

It is not a de Polignac number, because 7272522126605 - 2³⁴ = 7255342257421 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7272522126605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824321 + ... + 5400969.

It is an arithmetic number, because the mean of its divisors is an integer number (563053248000).

Almost surely, 2^{7272522126605} is an apocalyptic number.

It is an amenable number.

7272522126605 is a deficient number, since it is larger than the sum of its proper divisors (1736329841395).

7272522126605 is a wasteful number, since it uses less digits than its factorization.

7272522126605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606444.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 7272522126605 in words is "seven trillion, two hundred seventy-two billion, five hundred twenty-two million, one hundred twenty-six thousand, six hundred five".