11780228969 has 8 divisors (see below), whose sum is σ = 12419014080. Its totient is φ = 11143321200.

The previous prime is 11780228951. The next prime is 11780228983. The reversal of 11780228969 is 96982208711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11780228969 - 2²⁰ = 11779180393 is a prime.

It is a super-2 number, since 2×11780228969² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11780228969.

It is not an unprimeable number, because it can be changed into a prime (11780228989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456437 + ... + 481554.

It is an arithmetic number, because the mean of its divisors is an integer number (1552376760).

Almost surely, 2^11780228969 is an apocalyptic number.

11780228969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11780228969 is a deficient number, since it is larger than the sum of its proper divisors (638785111).

11780228969 is an equidigital number, since it uses as much as digits as its factorization.

11780228969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938671.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 11780228969 in words is "eleven billion, seven hundred eighty million, two hundred twenty-eight thousand, nine hundred sixty-nine".