3423512721663 has 16 divisors (see below), whose sum is σ = 5072589681760. Its totient is φ = 2282018272128.

The previous prime is 3423512721617. The next prime is 3423512721677. The reversal of 3423512721663 is 3661272153243.

It is a happy number.

3423512721663 is a `hidden beast` number, since 3 + 4 + 2 + 3 + 512 + 72 + 1 + 6 + 63 = 666.

It is not a de Polignac number, because 3423512721663 - 2⁸ = 3423512721407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3423512731663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8793220 + ... + 9174297.

It is an arithmetic number, because the mean of its divisors is an integer number (317036855110).

Almost surely, 2^{3423512721663} is an apocalyptic number.

3423512721663 is a deficient number, since it is larger than the sum of its proper divisors (1649076960097).

3423512721663 is a wasteful number, since it uses less digits than its factorization.

3423512721663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17974583 (or 17974577 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The spelling of 3423512721663 in words is "three trillion, four hundred twenty-three billion, five hundred twelve million, seven hundred twenty-one thousand, six hundred sixty-three".