6956985287 has 4 divisors (see below), whose sum is σ = 7950840336. Its totient is φ = 5963130240.

The previous prime is 6956985281. The next prime is 6956985307. The reversal of 6956985287 is 7825896596.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6956985287 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 (6956985281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496927514 + ... + 496927527.

It is an arithmetic number, because the mean of its divisors is an integer number (1987710084).

Almost surely, 2^6956985287 is an apocalyptic number.

6956985287 is a deficient number, since it is larger than the sum of its proper divisors (993855049).

6956985287 is an equidigital number, since it uses as much as digits as its factorization.

6956985287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993855048.

The product of its digits is 65318400, while the sum is 65.

The square root of 6956985287 is about 83408.5444483957. The cubic root of 6956985287 is about 1909.0048347778.

The spelling of 6956985287 in words is "six billion, nine hundred fifty-six million, nine hundred eighty-five thousand, two hundred eighty-seven".