56684339408 has 40 divisors (see below), whose sum is σ = 114802074816. Its totient is φ = 27062323200.

The previous prime is 56684339407. The next prime is 56684339423. The reversal of 56684339408 is 80493348665.

It is a happy number.

It is a super-2 number, since 2×56684339408² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56684339407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75248 + ... + 345008.

Almost surely, 2^56684339408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56684339408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57401037408).

56684339408 is an abundant number, since it is smaller than the sum of its proper divisors (58117735408).

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

56684339408 is a wasteful number, since it uses less digits than its factorization.

56684339408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270363 (or 270357 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 56684339408 in words is "fifty-six billion, six hundred eighty-four million, three hundred thirty-nine thousand, four hundred eight".