11778535484 has 12 divisors (see below), whose sum is σ = 21323211000. Its totient is φ = 5686189488.

The previous prime is 11778535481. The next prime is 11778535501. The reversal of 11778535484 is 48453587711.

It is a happy number.

It is a super-2 number, since 2×11778535484² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778535481) 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, 50769434 + ... + 50769665.

It is an arithmetic number, because the mean of its divisors is an integer number (1776934250).

Almost surely, 2^11778535484 is an apocalyptic number.

It is an amenable number.

11778535484 is a deficient number, since it is larger than the sum of its proper divisors (9544675516).

11778535484 is a wasteful number, since it uses less digits than its factorization.

11778535484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101539132 (or 101539130 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 53.

The spelling of 11778535484 in words is "eleven billion, seven hundred seventy-eight million, five hundred thirty-five thousand, four hundred eighty-four".