9169872541 has 8 divisors (see below), whose sum is σ = 9451716440. Its totient is φ = 8889818688.

The previous prime is 9169872533. The next prime is 9169872611. The reversal of 9169872541 is 1452789619.

It can be written as a sum of positive squares in 4 ways, for example, as 60124516 + 9109748025 = 7754^2 + 95445^2 .

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 9169872541 - 2³ = 9169872533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9169872241) 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, 437106 + ... + 457603.

It is an arithmetic number, because the mean of its divisors is an integer number (1181464555).

Almost surely, 2^9169872541 is an apocalyptic number.

It is an amenable number.

9169872541 is a deficient number, since it is larger than the sum of its proper divisors (281843899).

9169872541 is a wasteful number, since it uses less digits than its factorization.

9169872541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895023.

The product of its digits is 1088640, while the sum is 52.

The square root of 9169872541 is about 95759.4514447530. The cubic root of 9169872541 is about 2093.0893424604.

The spelling of 9169872541 in words is "nine billion, one hundred sixty-nine million, eight hundred seventy-two thousand, five hundred forty-one".