11981828807 has 32 divisors (see below), whose sum is σ = 13615003584. Its totient is φ = 10468224000.

The previous prime is 11981828797. The next prime is 11981828827. The reversal of 11981828807 is 70882818911.

It is not a de Polignac number, because 11981828807 - 2⁴ = 11981828791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11981828827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9209057 + ... + 9210357.

It is an arithmetic number, because the mean of its divisors is an integer number (425468862).

Almost surely, 2^11981828807 is an apocalyptic number.

11981828807 is a deficient number, since it is larger than the sum of its proper divisors (1633174777).

11981828807 is a wasteful number, since it uses less digits than its factorization.

11981828807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 516096, while the sum is 53.

The spelling of 11981828807 in words is "eleven billion, nine hundred eighty-one million, eight hundred twenty-eight thousand, eight hundred seven".