11772381006 has 24 divisors (see below), whose sum is σ = 26329627584. Its totient is φ = 3797542080.

The previous prime is 11772380987. The next prime is 11772381007. The reversal of 11772381006 is 60018327711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11772381007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10548171 + ... + 10549286.

It is an arithmetic number, because the mean of its divisors is an integer number (1097067816).

Almost surely, 2^11772381006 is an apocalyptic number.

11772381006 is an abundant number, since it is smaller than the sum of its proper divisors (14557246578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11772381006 is a wasteful number, since it uses less digits than its factorization.

11772381006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21097496 (or 21097493 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 11772381006 in words is "eleven billion, seven hundred seventy-two million, three hundred eighty-one thousand, six".