6437984375 has 14 divisors (see below), whose sum is σ = 8047396992. Its totient is φ = 5150375000.

The previous prime is 6437984363. The next prime is 6437984387. The reversal of 6437984375 is 5734897346.

It is an interprime number because it is at equal distance from previous prime (6437984363) and next prime (6437984387).

It is a de Polignac number, because none of the positive numbers 2^k-6437984375 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6437984375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 190391 + ... + 221640.

Almost surely, 2^6437984375 is an apocalyptic number.

6437984375 is a deficient number, since it is larger than the sum of its proper divisors (1609412617).

6437984375 is an frugal number, since it uses more digits than its factorization.

6437984375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412061 (or 412036 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 56.

The square root of 6437984375 is about 80237.0511359933. The cubic root of 6437984375 is about 1860.3013708880.

The spelling of 6437984375 in words is "six billion, four hundred thirty-seven million, nine hundred eighty-four thousand, three hundred seventy-five".