7539686730801 has 9 divisors (see below), whose sum is σ = 10890670509849. Its totient is φ = 5026452328836.

The previous prime is 7539686730769. The next prime is 7539686730889. The reversal of 7539686730801 is 1080376869357.

The square root of 7539686730801 is 2745849.

It is a perfect power (a square), and thus also a powerful number.

7539686730801 is a `hidden beast` number, since 7 + 539 + 6 + 8 + 67 + 30 + 8 + 0 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 7539686730801 - 2⁵ = 7539686730769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7539686530801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7779906 + ... + 8695188.

Almost surely, 2^{7539686730801} is an apocalyptic number.

7539686730801 is the 2745849-th square number.

7539686730801 is the 1372925-th centered octagonal number.

It is an amenable number.

7539686730801 is a deficient number, since it is larger than the sum of its proper divisors (3350983779048).

7539686730801 is an frugal number, since it uses more digits than its factorization.

7539686730801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830572 (or 915286 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 7539686730801 in words is "seven trillion, five hundred thirty-nine billion, six hundred eighty-six million, seven hundred thirty thousand, eight hundred one".