6985938765 has 32 divisors (see below), whose sum is σ = 12293438976. Its totient is φ = 3366051840.

The previous prime is 6985938761. The next prime is 6985938769. The reversal of 6985938765 is 5678395896.

It is an interprime number because it is at equal distance from previous prime (6985938761) and next prime (6985938769).

It is not a de Polignac number, because 6985938765 - 2² = 6985938761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6985938696 and 6985938705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985938761) 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 31 ways as a sum of consecutive naturals, for example, 371956 + ... + 390285.

It is an arithmetic number, because the mean of its divisors is an integer number (384169968).

Almost surely, 2^6985938765 is an apocalyptic number.

6985938765 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6985938765 is a deficient number, since it is larger than the sum of its proper divisors (5307500211).

6985938765 is a wasteful number, since it uses less digits than its factorization.

6985938765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762309.

The product of its digits is 97977600, while the sum is 66.

The square root of 6985938765 is about 83581.9284594463. The cubic root of 6985938765 is about 1911.6494586973.

The spelling of 6985938765 in words is "six billion, nine hundred eighty-five million, nine hundred thirty-eight thousand, seven hundred sixty-five".