6976878399 has 12 divisors (see below), whose sum is σ = 10080767736. Its totient is φ = 4649842512.

The previous prime is 6976878379. The next prime is 6976878427. The reversal of 6976878399 is 9938786796.

It is not a de Polignac number, because 6976878399 - 2¹¹ = 6976876351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6976878379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85684 + ... + 145929.

It is an arithmetic number, because the mean of its divisors is an integer number (840063978).

Almost surely, 2^6976878399 is an apocalyptic number.

6976878399 is a deficient number, since it is larger than the sum of its proper divisors (3103889337).

6976878399 is a wasteful number, since it uses less digits than its factorization.

6976878399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234966 (or 234963 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 72.

The square root of 6976878399 is about 83527.7103660815. The cubic root of 6976878399 is about 1910.8226675514.

The spelling of 6976878399 in words is "six billion, nine hundred seventy-six million, eight hundred seventy-eight thousand, three hundred ninety-nine".