3555998694 has 48 divisors (see below), whose sum is σ = 8140532400. Its totient is φ = 1118743488.

The previous prime is 3555998689. The next prime is 3555998707. The reversal of 3555998694 is 4968995553.

3555998694 is a `hidden beast` number, since 35 + 5 + 599 + 8 + 6 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72672 + ... + 111324.

It is an arithmetic number, because the mean of its divisors is an integer number (169594425).

Almost surely, 2^3555998694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3555998694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4070266200).

3555998694 is an abundant number, since it is smaller than the sum of its proper divisors (4584533706).

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

3555998694 is a wasteful number, since it uses less digits than its factorization.

3555998694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38949 (or 38946 counting only the distinct ones).

The product of its digits is 52488000, while the sum is 63.

The square root of 3555998694 is about 59632.1951130428. The cubic root of 3555998694 is about 1526.3490624648.

The spelling of 3555998694 in words is "three billion, five hundred fifty-five million, nine hundred ninety-eight thousand, six hundred ninety-four".