11880198782 has 32 divisors (see below), whose sum is σ = 18291329280. Its totient is φ = 5784929280.

The previous prime is 11880198769. The next prime is 11880198787. The reversal of 11880198782 is 28789108811.

It is a super-2 number, since 2×11880198782² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880198787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12787694 + ... + 12788622.

It is an arithmetic number, because the mean of its divisors is an integer number (571604040).

Almost surely, 2^11880198782 is an apocalyptic number.

11880198782 is a deficient number, since it is larger than the sum of its proper divisors (6411130498).

11880198782 is a wasteful number, since it uses less digits than its factorization.

11880198782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 516096, while the sum is 53.

The spelling of 11880198782 in words is "eleven billion, eight hundred eighty million, one hundred ninety-eight thousand, seven hundred eighty-two".