11812428783 has 6 divisors (see below), whose sum is σ = 17062397144. Its totient is φ = 7874952516.

The previous prime is 11812428751. The next prime is 11812428829. The reversal of 11812428783 is 38782421811.

It is not a de Polignac number, because 11812428783 - 2⁵ = 11812428751 is a prime.

It is a super-2 number, since 2×11812428783² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11812428713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656246035 + ... + 656246052.

Almost surely, 2^11812428783 is an apocalyptic number.

11812428783 is a deficient number, since it is larger than the sum of its proper divisors (5249968361).

11812428783 is a wasteful number, since it uses less digits than its factorization.

11812428783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312492093 (or 1312492090 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The spelling of 11812428783 in words is "eleven billion, eight hundred twelve million, four hundred twenty-eight thousand, seven hundred eighty-three".