6710771987 has 4 divisors (see below), whose sum is σ = 6777215376. Its totient is φ = 6644328600.

The previous prime is 6710771957. The next prime is 6710771989. The reversal of 6710771987 is 7891770176.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6710771987 - 2⁸ = 6710771731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6710771989) 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, 33221543 + ... + 33221744.

It is an arithmetic number, because the mean of its divisors is an integer number (1694303844).

Almost surely, 2^6710771987 is an apocalyptic number.

6710771987 is a deficient number, since it is larger than the sum of its proper divisors (66443389).

6710771987 is a wasteful number, since it uses less digits than its factorization.

6710771987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66443388.

The product of its (nonzero) digits is 1037232, while the sum is 53.

The square root of 6710771987 is about 81919.3016754904. The cubic root of 6710771987 is about 1886.2134079158.

The spelling of 6710771987 in words is "six billion, seven hundred ten million, seven hundred seventy-one thousand, nine hundred eighty-seven".