11827935971 has 4 divisors (see below), whose sum is σ = 11828996472. Its totient is φ = 11826875472.

The previous prime is 11827935967. The next prime is 11827935989. The reversal of 11827935971 is 17953972811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17953972811 = 1721 ⋅10432291.

It is a cyclic number.

It is not a de Polignac number, because 11827935971 - 2² = 11827935967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11827935941) 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, 513341 + ... + 535886.

It is an arithmetic number, because the mean of its divisors is an integer number (2957249118).

Almost surely, 2^11827935971 is an apocalyptic number.

11827935971 is a deficient number, since it is larger than the sum of its proper divisors (1060501).

11827935971 is a wasteful number, since it uses less digits than its factorization.

11827935971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060500.

The product of its digits is 952560, while the sum is 53.

The spelling of 11827935971 in words is "eleven billion, eight hundred twenty-seven million, nine hundred thirty-five thousand, nine hundred seventy-one".