6957878612 has 6 divisors (see below), whose sum is σ = 12176287578. Its totient is φ = 3478939304.

The previous prime is 6957878591. The next prime is 6957878639. The reversal of 6957878612 is 2168787596.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6843260176 + 114618436 = 82724^2 + 10706^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869734823 + ... + 869734830.

It is an arithmetic number, because the mean of its divisors is an integer number (2029381263).

Almost surely, 2^6957878612 is an apocalyptic number.

It is an amenable number.

6957878612 is a deficient number, since it is larger than the sum of its proper divisors (5218408966).

6957878612 is a wasteful number, since it uses less digits than its factorization.

6957878612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739469657 (or 1739469655 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 59.

The square root of 6957878612 is about 83413.8993933265. The cubic root of 6957878612 is about 1909.0865410861.

The spelling of 6957878612 in words is "six billion, nine hundred fifty-seven million, eight hundred seventy-eight thousand, six hundred twelve".