6397954390912 has 128 divisors (see below), whose sum is σ = 15071002329600. Its totient is φ = 2647090575360.

The previous prime is 6397954390907. The next prime is 6397954390931. The reversal of 6397954390912 is 2190934597936.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372160237 + ... + 372177427.

It is an arithmetic number, because the mean of its divisors is an integer number (117742205700).

Almost surely, 2^{6397954390912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397954390912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7535501164800).

6397954390912 is an abundant number, since it is smaller than the sum of its proper divisors (8673047938688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397954390912 is a wasteful number, since it uses less digits than its factorization.

6397954390912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31564 (or 31552 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 67.

The spelling of 6397954390912 in words is "six trillion, three hundred ninety-seven billion, nine hundred fifty-four million, three hundred ninety thousand, nine hundred twelve".