10538615117 has 4 divisors (see below), whose sum is σ = 10540651260. Its totient is φ = 10536578976.

The previous prime is 10538615081. The next prime is 10538615141. The reversal of 10538615117 is 71151683501.

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 3044942761 + 7493672356 = 55181^2 + 86566^2 .

It is a cyclic number.

It is not a de Polignac number, because 10538615117 - 2³⁰ = 9464873293 is a prime.

It is a super-2 number, since 2×10538615117² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10538618117) 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, 1010288 + ... + 1020665.

It is an arithmetic number, because the mean of its divisors is an integer number (2635162815).

Almost surely, 2^10538615117 is an apocalyptic number.

It is an amenable number.

10538615117 is a deficient number, since it is larger than the sum of its proper divisors (2036143).

10538615117 is an equidigital number, since it uses as much as digits as its factorization.

10538615117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036142.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 10538615117 in words is "ten billion, five hundred thirty-eight million, six hundred fifteen thousand, one hundred seventeen".