11591702639 has 4 divisors (see below), whose sum is σ = 12645493800. Its totient is φ = 10537911480.

The previous prime is 11591702599. The next prime is 11591702641. The reversal of 11591702639 is 93620719511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11591702639 - 2²⁸ = 11323267183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11591702639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11591702659) 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, 526895564 + ... + 526895585.

It is an arithmetic number, because the mean of its divisors is an integer number (3161373450).

Almost surely, 2^11591702639 is an apocalyptic number.

11591702639 is a deficient number, since it is larger than the sum of its proper divisors (1053791161).

11591702639 is a wasteful number, since it uses less digits than its factorization.

11591702639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053791160.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 11591702639 in words is "eleven billion, five hundred ninety-one million, seven hundred two thousand, six hundred thirty-nine".