6412889358991 has 16 divisors (see below), whose sum is σ = 6998013792000. Its totient is φ = 5852884076928.

The previous prime is 6412889358973. The next prime is 6412889359003. The reversal of 6412889358991 is 1998539882146.

It is a cyclic number.

It is not a de Polignac number, because 6412889358991 - 2⁹ = 6412889358479 is a prime.

It is a super-2 number, since 2×6412889358991² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412889358091) 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, 31455091 + ... + 31658308.

It is an arithmetic number, because the mean of its divisors is an integer number (437375862000).

Almost surely, 2^{6412889358991} is an apocalyptic number.

6412889358991 is a deficient number, since it is larger than the sum of its proper divisors (585124433009).

6412889358991 is a wasteful number, since it uses less digits than its factorization.

6412889358991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63113598.

The product of its digits is 268738560, while the sum is 73.

The spelling of 6412889358991 in words is "six trillion, four hundred twelve billion, eight hundred eighty-nine million, three hundred fifty-eight thousand, nine hundred ninety-one".