10539235391 has 8 divisors (see below), whose sum is σ = 11160756720. Its totient is φ = 9917888128.

The previous prime is 10539235379. The next prime is 10539235417. The reversal of 10539235391 is 19353293501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-10539235391 is a prime.

It is a super-2 number, since 2×10539235391² (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 (10539235321) 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, 93500 + ... + 172686.

It is an arithmetic number, because the mean of its divisors is an integer number (1395094590).

Almost surely, 2^10539235391 is an apocalyptic number.

10539235391 is a deficient number, since it is larger than the sum of its proper divisors (621521329).

10539235391 is an equidigital number, since it uses as much as digits as its factorization.

10539235391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87033.

The product of its (nonzero) digits is 109350, while the sum is 41.

The spelling of 10539235391 in words is "ten billion, five hundred thirty-nine million, two hundred thirty-five thousand, three hundred ninety-one".