3564881778 has 32 divisors (see below), whose sum is σ = 7195446720. Its totient is φ = 1177375680.

The previous prime is 3564881777. The next prime is 3564881807. The reversal of 3564881778 is 8771884653.

It is a super-2 number, since 2×3564881778² = 25416764182232882568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3564881777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554076 + ... + 560472.

It is an arithmetic number, because the mean of its divisors is an integer number (224857710).

Almost surely, 2^3564881778 is an apocalyptic number.

3564881778 is an abundant number, since it is smaller than the sum of its proper divisors (3630564942).

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

3564881778 is a wasteful number, since it uses less digits than its factorization.

3564881778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242.

The product of its digits is 9031680, while the sum is 57.

The square root of 3564881778 is about 59706.6309382802. The cubic root of 3564881778 is about 1527.6189741102.

The spelling of 3564881778 in words is "three billion, five hundred sixty-four million, eight hundred eighty-one thousand, seven hundred seventy-eight".