11890279680 has 72 divisors (see below), whose sum is σ = 37974592992. Its totient is φ = 3170740224.

The previous prime is 11890279669. The next prime is 11890279699. The reversal of 11890279680 is 8697209811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544374 + ... + 1552053.

Almost surely, 2^11890279680 is an apocalyptic number.

11890279680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11890279680 is an abundant number, since it is smaller than the sum of its proper divisors (26084313312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11890279680 is an equidigital number, since it uses as much as digits as its factorization.

11890279680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096451 (or 3096437 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 11890279680 in words is "eleven billion, eight hundred ninety million, two hundred seventy-nine thousand, six hundred eighty".