3249357663447 has 36 divisors (see below), whose sum is σ = 5461043300856. Its totient is φ = 1856354703840.

The previous prime is 3249357663421. The next prime is 3249357663469. The reversal of 3249357663447 is 7443667539423.

3249357663447 is a `hidden beast` number, since 3 + 2 + 493 + 5 + 76 + 6 + 34 + 47 = 666.

It is not a de Polignac number, because 3249357663447 - 2²² = 3249353469143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3249357663647) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1116348 + ... + 2782974.

It is an arithmetic number, because the mean of its divisors is an integer number (151695647246).

Almost surely, 2^{3249357663447} is an apocalyptic number.

3249357663447 is a deficient number, since it is larger than the sum of its proper divisors (2211685637409).

3249357663447 is a wasteful number, since it uses less digits than its factorization.

3249357663447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671068 (or 1671058 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 63.

The spelling of 3249357663447 in words is "three trillion, two hundred forty-nine billion, three hundred fifty-seven million, six hundred sixty-three thousand, four hundred forty-seven".