6978923415 has 32 divisors (see below), whose sum is σ = 12412074240. Its totient is φ = 3720562848.

The previous prime is 6978923411. The next prime is 6978923417. The reversal of 6978923415 is 5143298796.

It is not a de Polignac number, because 6978923415 - 2² = 6978923411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978923411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369184 + ... + 387626.

It is an arithmetic number, because the mean of its divisors is an integer number (387877320).

Almost surely, 2^6978923415 is an apocalyptic number.

6978923415 is a deficient number, since it is larger than the sum of its proper divisors (5433150825).

6978923415 is a wasteful number, since it uses less digits than its factorization.

6978923415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260 (or 21254 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 6978923415 is about 83539.9510114771. The cubic root of 6978923415 is about 1911.0093451729.

The spelling of 6978923415 in words is "six billion, nine hundred seventy-eight million, nine hundred twenty-three thousand, four hundred fifteen".