11777683812 has 48 divisors (see below), whose sum is σ = 28485172800. Its totient is φ = 3783015040.

The previous prime is 11777683811. The next prime is 11777683829. The reversal of 11777683812 is 21838677711.

It is not an unprimeable number, because it can be changed into a prime (11777683811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143887 + ... + 210377.

It is an arithmetic number, because the mean of its divisors is an integer number (593441100).

Almost surely, 2^11777683812 is an apocalyptic number.

11777683812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11777683812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14242586400).

11777683812 is an abundant number, since it is smaller than the sum of its proper divisors (16707488988).

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

11777683812 is a wasteful number, since it uses less digits than its factorization.

11777683812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67036 (or 67034 counting only the distinct ones).

The product of its digits is 790272, while the sum is 51.

The spelling of 11777683812 in words is "eleven billion, seven hundred seventy-seven million, six hundred eighty-three thousand, eight hundred twelve".