6534371392989 has 32 divisors (see below), whose sum is σ = 9918384768000. Its totient is φ = 3787810815360.

The previous prime is 6534371392987. The next prime is 6534371393041. The reversal of 6534371392989 is 9892931734356.

It is not a de Polignac number, because 6534371392989 - 2¹ = 6534371392987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534371392987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12633537 + ... + 13140585.

It is an arithmetic number, because the mean of its divisors is an integer number (309949524000).

Almost surely, 2^{6534371392989} is an apocalyptic number.

6534371392989 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6534371392989 is a deficient number, since it is larger than the sum of its proper divisors (3384013375011).

6534371392989 is a wasteful number, since it uses less digits than its factorization.

6534371392989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524065.

The product of its digits is 264539520, while the sum is 69.

The spelling of 6534371392989 in words is "six trillion, five hundred thirty-four billion, three hundred seventy-one million, three hundred ninety-two thousand, nine hundred eighty-nine".