13422784660 has 12 divisors (see below), whose sum is σ = 28187847828. Its totient is φ = 5369113856.

The previous prime is 13422784657. The next prime is 13422784691. The reversal of 13422784660 is 6648722431.

It can be written as a sum of positive squares in 2 ways, for example, as 5874302736 + 7548481924 = 76644^2 + 86882^2 .

It is a super-2 number, since 2×13422784660² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 335569597 + ... + 335569636.

It is an arithmetic number, because the mean of its divisors is an integer number (2348987319).

Almost surely, 2^13422784660 is an apocalyptic number.

13422784660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13422784660 is an abundant number, since it is smaller than the sum of its proper divisors (14765063168).

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

13422784660 is a wasteful number, since it uses less digits than its factorization.

13422784660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671139242 (or 671139240 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 13422784660 in words is "thirteen billion, four hundred twenty-two million, seven hundred eighty-four thousand, six hundred sixty".