6440262620446 has 16 divisors (see below), whose sum is σ = 9663356452464. Its totient is φ = 3219143933824.

The previous prime is 6440262620419. The next prime is 6440262620461.

6440262620446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6440262620396 and 6440262620405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142659990 + ... + 142705126.

It is an arithmetic number, because the mean of its divisors is an integer number (603959778279).

Almost surely, 2^{6440262620446} is an apocalyptic number.

6440262620446 is a deficient number, since it is larger than the sum of its proper divisors (3223093832018).

6440262620446 is a wasteful number, since it uses less digits than its factorization.

6440262620446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65435.

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 6440262620446 in words is "six trillion, four hundred forty billion, two hundred sixty-two million, six hundred twenty thousand, four hundred forty-six".