11783942636 has 18 divisors (see below), whose sum is σ = 21557490612. Its totient is φ = 5635797640.

The previous prime is 11783942617. The next prime is 11783942641. The reversal of 11783942636 is 63624938711.

It is a super-2 number, since 2×11783942636² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2782370 + ... + 2786601.

Almost surely, 2^11783942636 is an apocalyptic number.

It is an amenable number.

11783942636 is a deficient number, since it is larger than the sum of its proper divisors (9773547976).

11783942636 is a wasteful number, since it uses less digits than its factorization.

11783942636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569021 (or 5568996 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 11783942636 in words is "eleven billion, seven hundred eighty-three million, nine hundred forty-two thousand, six hundred thirty-six".