6347839937984 has 28 divisors (see below), whose sum is σ = 12598037524728. Its totient is φ = 3173531270400.

The previous prime is 6347839937969. The next prime is 6347839937987. The reversal of 6347839937984 is 4897399387436.

It is a junction number, because it is equal to n+sod(n) for n = 6347839937899 and 6347839937908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6347839937987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5546387 + ... + 6592274.

Almost surely, 2^{6347839937984} is an apocalyptic number.

6347839937984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6347839937984 is a deficient number, since it is larger than the sum of its proper divisors (6250197586744).

6347839937984 is a wasteful number, since it uses less digits than its factorization.

6347839937984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146844 (or 12146834 counting only the distinct ones).

The product of its digits is 5925685248, while the sum is 80.

Adding to 6347839937984 its sum of digits (80), we get a square (6347839938064 = 2519492²).

The spelling of 6347839937984 in words is "six trillion, three hundred forty-seven billion, eight hundred thirty-nine million, nine hundred thirty-seven thousand, nine hundred eighty-four".