3545881864 has 64 divisors (see below), whose sum is σ = 7773552000. Its totient is φ = 1515713472.

The previous prime is 3545881861. The next prime is 3545881883. The reversal of 3545881864 is 4681885453.

It is a happy number.

3545881864 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 2×3545881864² = 25146556386888228992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3545881861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214134 + ... + 1217050.

It is an arithmetic number, because the mean of its divisors is an integer number (121461750).

Almost surely, 2^3545881864 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 3545881864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3886776000).

3545881864 is an abundant number, since it is smaller than the sum of its proper divisors (4227670136).

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

3545881864 is a wasteful number, since it uses less digits than its factorization.

3545881864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3369 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The square root of 3545881864 is about 59547.3077812927. The cubic root of 3545881864 is about 1524.9001979299.

The spelling of 3545881864 in words is "three billion, five hundred forty-five million, eight hundred eighty-one thousand, eight hundred sixty-four".