13556864740 has 48 divisors (see below), whose sum is σ = 28669254768. Its totient is φ = 5384761344.

The previous prime is 13556864719. The next prime is 13556864767. The reversal of 13556864740 is 4746865531.

It can be written as a sum of positive squares in 8 ways, for example, as 1150023744 + 12406840996 = 33912^2 + 111386^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3572284 + ... + 3576076.

It is an arithmetic number, because the mean of its divisors is an integer number (597276141).

Almost surely, 2^13556864740 is an apocalyptic number.

13556864740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13556864740 is an abundant number, since it is smaller than the sum of its proper divisors (15112390028).

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

13556864740 is a wasteful number, since it uses less digits than its factorization.

13556864740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 13556864740 in words is "thirteen billion, five hundred fifty-six million, eight hundred sixty-four thousand, seven hundred forty".