6463960693646 has 16 divisors (see below), whose sum is σ = 9698721926400. Its totient is φ = 3231053507328.

The previous prime is 6463960693633. The next prime is 6463960693661.

6463960693646 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160899050 + ... + 160939218.

It is an arithmetic number, because the mean of its divisors is an integer number (606170120400).

Almost surely, 2^{6463960693646} is an apocalyptic number.

6463960693646 is a deficient number, since it is larger than the sum of its proper divisors (3234761232754).

6463960693646 is a wasteful number, since it uses less digits than its factorization.

6463960693646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61243.

The product of its (nonzero) digits is 544195584, while the sum is 68.

The spelling of 6463960693646 in words is "six trillion, four hundred sixty-three billion, nine hundred sixty million, six hundred ninety-three thousand, six hundred forty-six".