6453768991841 has 32 divisors (see below), whose sum is σ = 6883047628800. Its totient is φ = 6041142518400.

The previous prime is 6453768991823. The next prime is 6453768991867. The reversal of 6453768991841 is 1481998673546.

It is a cyclic number.

It is not a de Polignac number, because 6453768991841 - 2¹⁴ = 6453768975457 is a prime.

It is a super-2 number, since 2×6453768991841² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6453768991871) 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 31 ways as a sum of consecutive naturals, for example, 71533826 + ... + 71623988.

It is an arithmetic number, because the mean of its divisors is an integer number (215095238400).

Almost surely, 2^{6453768991841} is an apocalyptic number.

It is an amenable number.

6453768991841 is a deficient number, since it is larger than the sum of its proper divisors (429278636959).

6453768991841 is a wasteful number, since it uses less digits than its factorization.

6453768991841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90717.

The product of its digits is 313528320, while the sum is 71.

The spelling of 6453768991841 in words is "six trillion, four hundred fifty-three billion, seven hundred sixty-eight million, nine hundred ninety-one thousand, eight hundred forty-one".