3259640409545 has 32 divisors (see below), whose sum is σ = 4442273969280. Its totient is φ = 2276259148800.

The previous prime is 3259640409533. The next prime is 3259640409547. The reversal of 3259640409545 is 5459040469523.

It is not a de Polignac number, because 3259640409545 - 2⁶ = 3259640409481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3259640409547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1737056 + ... + 3088145.

It is an arithmetic number, because the mean of its divisors is an integer number (138821061540).

Almost surely, 2^{3259640409545} is an apocalyptic number.

It is an amenable number.

3259640409545 is a deficient number, since it is larger than the sum of its proper divisors (1182633559735).

3259640409545 is a wasteful number, since it uses less digits than its factorization.

3259640409545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825785.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 3259640409545 in words is "three trillion, two hundred fifty-nine billion, six hundred forty million, four hundred nine thousand, five hundred forty-five".