3255440918729 has 4 divisors (see below), whose sum is σ = 3255444691476. Its totient is φ = 3255437145984.

The previous prime is 3255440918671. The next prime is 3255440918783. The reversal of 3255440918729 is 9278190445523.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2138716129225 + 1116724789504 = 1462435^2 + 1056752^2 .

It is a cyclic number.

It is not a de Polignac number, because 3255440918729 - 2⁸ = 3255440918473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3255440948729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117557 + ... + 2554349.

It is an arithmetic number, because the mean of its divisors is an integer number (813861172869).

Almost surely, 2^{3255440918729} is an apocalyptic number.

It is an amenable number.

3255440918729 is a deficient number, since it is larger than the sum of its proper divisors (3772747).

3255440918729 is a wasteful number, since it uses less digits than its factorization.

3255440918729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772746.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 3255440918729 in words is "three trillion, two hundred fifty-five billion, four hundred forty million, nine hundred eighteen thousand, seven hundred twenty-nine".