11777785964 has 12 divisors (see below), whose sum is σ = 23555571984. Its totient is φ = 5047622544.

The previous prime is 11777785961. The next prime is 11777786023. The reversal of 11777785964 is 46958777711.

11777785964 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11777785897 and 11777785906.

It is not an unprimeable number, because it can be changed into a prime (11777785961) 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, 210317579 + ... + 210317634.

It is an arithmetic number, because the mean of its divisors is an integer number (1962964332).

Almost surely, 2^11777785964 is an apocalyptic number.

11777785964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11777785964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11777785964 is a wasteful number, since it uses less digits than its factorization.

11777785964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420635224 (or 420635222 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 62.

The spelling of 11777785964 in words is "eleven billion, seven hundred seventy-seven million, seven hundred eighty-five thousand, nine hundred sixty-four".