6446239297641 has 96 divisors (see below), whose sum is σ = 10963524604032. Its totient is φ = 3598236794880.

The previous prime is 6446239297639. The next prime is 6446239297651. The reversal of 6446239297641 is 1467929326446.

6446239297641 is a `hidden beast` number, since 6 + 44 + 62 + 392 + 97 + 64 + 1 = 666.

It is not a de Polignac number, because 6446239297641 - 2¹ = 6446239297639 is a prime.

It is a super-2 number, since 2×6446239297641² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6446239297651) 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 95 ways as a sum of consecutive naturals, for example, 1291052841 + ... + 1291057833.

It is an arithmetic number, because the mean of its divisors is an integer number (114203381292).

Almost surely, 2^{6446239297641} is an apocalyptic number.

It is an amenable number.

6446239297641 is a deficient number, since it is larger than the sum of its proper divisors (4517285306391).

6446239297641 is a wasteful number, since it uses less digits than its factorization.

6446239297641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063 (or 7060 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 6446239297641 in words is "six trillion, four hundred forty-six billion, two hundred thirty-nine million, two hundred ninety-seven thousand, six hundred forty-one".