3646471864679 has 16 divisors (see below), whose sum is σ = 4187179594752. Its totient is φ = 3110732304768.

The previous prime is 3646471864663. The next prime is 3646471864733. The reversal of 3646471864679 is 9764681746463.

It is a cyclic number.

It is not a de Polignac number, because 3646471864679 - 2⁴ = 3646471864663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646471864619) 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, 1025327 + ... + 2888639.

It is an arithmetic number, because the mean of its divisors is an integer number (261698724672).

Almost surely, 2^{3646471864679} is an apocalyptic number.

3646471864679 is a deficient number, since it is larger than the sum of its proper divisors (540707730073).

3646471864679 is a wasteful number, since it uses less digits than its factorization.

3646471864679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864646.

The product of its digits is 877879296, while the sum is 71.

The spelling of 3646471864679 in words is "three trillion, six hundred forty-six billion, four hundred seventy-one million, eight hundred sixty-four thousand, six hundred seventy-nine".