3504881556 has 192 divisors, whose sum is σ = 10377400320. Its totient is φ = 1013472000.

The previous prime is 3504881537. The next prime is 3504881591. The reversal of 3504881556 is 6551884053.

3504881556 is a `hidden beast` number, since 3 + 50 + 48 + 8 + 1 + 556 = 666.

3504881556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3504881556² = 24568389443177962272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2288511 + ... + 2290041.

It is an arithmetic number, because the mean of its divisors is an integer number (54048960).

Almost surely, 2^3504881556 is an apocalyptic number.

3504881556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3504881556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5188700160).

3504881556 is an abundant number, since it is smaller than the sum of its proper divisors (6872518764).

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

3504881556 is a wasteful number, since it uses less digits than its factorization.

3504881556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The square root of 3504881556 is about 59202.0401337657. The cubic root of 3504881556 is about 1519.0000284596. Note that the first 4 decimals are identical.

The spelling of 3504881556 in words is "three billion, five hundred four million, eight hundred eighty-one thousand, five hundred fifty-six".