6397860026880 has 480 divisors, whose sum is σ = 25365064817664. Its totient is φ = 1459936493568.

The previous prime is 6397860026867. The next prime is 6397860026893. The reversal of 6397860026880 is 886200687936.

It is an interprime number because it is at equal distance from previous prime (6397860026867) and next prime (6397860026893).

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×6397860026880² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97864284 + ... + 97929636.

Almost surely, 2^{6397860026880} is an apocalyptic number.

6397860026880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397860026880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12682532408832).

6397860026880 is an abundant number, since it is smaller than the sum of its proper divisors (18967204790784).

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

6397860026880 is a wasteful number, since it uses less digits than its factorization.

6397860026880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65996 (or 65977 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 6397860026880 in words is "six trillion, three hundred ninety-seven billion, eight hundred sixty million, twenty-six thousand, eight hundred eighty".