11421286620 has 24 divisors (see below), whose sum is σ = 31979602704. Its totient is φ = 3045676416.

The previous prime is 11421286619. The next prime is 11421286661. The reversal of 11421286620 is 2668212411.

It is a happy number.

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, 95177329 + ... + 95177448.

It is an arithmetic number, because the mean of its divisors is an integer number (1332483446).

Almost surely, 2^11421286620 is an apocalyptic number.

11421286620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11421286620 is an abundant number, since it is smaller than the sum of its proper divisors (20558316084).

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

11421286620 is a wasteful number, since it uses less digits than its factorization.

11421286620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190354789 (or 190354787 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 11421286620 in words is "eleven billion, four hundred twenty-one million, two hundred eighty-six thousand, six hundred twenty".