6989744375 has 40 divisors (see below), whose sum is σ = 9049903104. Its totient is φ = 5391180000.

The previous prime is 6989744371. The next prime is 6989744389. The reversal of 6989744375 is 5734479896.

It is not a de Polignac number, because 6989744375 - 2² = 6989744371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989744371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7110134 + ... + 7111116.

Almost surely, 2^6989744375 is an apocalyptic number.

6989744375 is a deficient number, since it is larger than the sum of its proper divisors (2060158729).

6989744375 is an equidigital number, since it uses as much as digits as its factorization.

6989744375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1386 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 62.

The square root of 6989744375 is about 83604.6911064206. The cubic root of 6989744375 is about 1911.9965211760.

The spelling of 6989744375 in words is "six billion, nine hundred eighty-nine million, seven hundred forty-four thousand, three hundred seventy-five".