6858642740 has 24 divisors (see below), whose sum is σ = 14867768832. Its totient is φ = 2654958240.

The previous prime is 6858642719. The next prime is 6858642761. The reversal of 6858642740 is 472468586.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6858642719) and next prime (6858642761).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530544 + ... + 5531783.

It is an arithmetic number, because the mean of its divisors is an integer number (619490368).

Almost surely, 2^6858642740 is an apocalyptic number.

It is an amenable number.

6858642740 is an abundant number, since it is smaller than the sum of its proper divisors (8009126092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6858642740 is a wasteful number, since it uses less digits than its factorization.

6858642740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062367 (or 11062365 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

The square root of 6858642740 is about 82816.9230290525. The cubic root of 6858642740 is about 1899.9670114309.

The spelling of 6858642740 in words is "six billion, eight hundred fifty-eight million, six hundred forty-two thousand, seven hundred forty".