3268716781 has 16 divisors (see below), whose sum is σ = 3648445056. Its totient is φ = 2903400000.

The previous prime is 3268716757. The next prime is 3268716793. The reversal of 3268716781 is 1876178623.

It is a happy number.

3268716781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3268716781 - 2¹⁷ = 3268585709 is a prime.

It is a super-2 number, since 2×3268716781² = 21369018788782003922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3268816781) 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, 85191 + ... + 117451.

It is an arithmetic number, because the mean of its divisors is an integer number (228027816).

Almost surely, 2^3268716781 is an apocalyptic number.

It is an amenable number.

3268716781 is a deficient number, since it is larger than the sum of its proper divisors (379728275).

3268716781 is a wasteful number, since it uses less digits than its factorization.

3268716781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32484.

The product of its digits is 677376, while the sum is 49.

The square root of 3268716781 is about 57172.6926163182. The cubic root of 3268716781 is about 1484.0861001923.

The spelling of 3268716781 in words is "three billion, two hundred sixty-eight million, seven hundred sixteen thousand, seven hundred eighty-one".