3557944845 has 160 divisors (see below), whose sum is σ = 8264551680. Its totient is φ = 1422074880.

The previous prime is 3557944823. The next prime is 3557944849. The reversal of 3557944845 is 5484497553.

It is a happy number.

3557944845 is a `hidden beast` number, since 3 + 557 + 9 + 4 + 4 + 84 + 5 = 666.

It is not a de Polignac number, because 3557944845 - 2⁹ = 3557944333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3557944791 and 3557944800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557944849) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 697705 + ... + 702785.

It is an arithmetic number, because the mean of its divisors is an integer number (51653448).

Almost surely, 2^3557944845 is an apocalyptic number.

3557944845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3557944845 is an abundant number, since it is smaller than the sum of its proper divisors (4706606835).

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

3557944845 is a wasteful number, since it uses less digits than its factorization.

3557944845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137 (or 5128 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The square root of 3557944845 is about 59648.5108363989. The cubic root of 3557944845 is about 1526.6274618933.

The spelling of 3557944845 in words is "three billion, five hundred fifty-seven million, nine hundred forty-four thousand, eight hundred forty-five".