3581154864 has 120 divisors (see below), whose sum is σ = 11481979392. Its totient is φ = 1020689280.

The previous prime is 3581154851. The next prime is 3581154883. The reversal of 3581154864 is 4684511853.

3581154864 is a `hidden beast` number, since 3 + 58 + 115 + 486 + 4 = 666.

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, 430327 + ... + 438569.

Almost surely, 2^3581154864 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 3581154864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5740989696).

3581154864 is an abundant number, since it is smaller than the sum of its proper divisors (7900824528).

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

3581154864 is a wasteful number, since it uses less digits than its factorization.

3581154864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8695 (or 8686 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 3581154864 is about 59842.7511399668. The cubic root of 3581154864 is about 1529.9398874242.

The spelling of 3581154864 in words is "three billion, five hundred eighty-one million, one hundred fifty-four thousand, eight hundred sixty-four".