6978287101 has 6 divisors (see below), whose sum is σ = 7294882910. Its totient is φ = 6674882808.

The previous prime is 6978287083. The next prime is 6978287119. The reversal of 6978287101 is 1017828796.

It is an interprime number because it is at equal distance from previous prime (6978287083) and next prime (6978287119).

It can be written as a sum of positive squares in only one way, i.e., 6806415001 + 171872100 = 82501^2 + 13110^2 .

It is not a de Polignac number, because 6978287101 - 2¹¹ = 6978285053 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 (6978287401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6595206 + ... + 6596263.

Almost surely, 2^6978287101 is an apocalyptic number.

It is an amenable number.

6978287101 is a deficient number, since it is larger than the sum of its proper divisors (316595809).

6978287101 is a wasteful number, since it uses less digits than its factorization.

6978287101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13191515 (or 13191492 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 49.

The square root of 6978287101 is about 83536.1424833587. The cubic root of 6978287101 is about 1910.9512636758.

The spelling of 6978287101 in words is "six billion, nine hundred seventy-eight million, two hundred eighty-seven thousand, one hundred one".