6858230979640 has 32 divisors (see below), whose sum is σ = 15431098758480. Its totient is φ = 2743278337792.

The previous prime is 6858230979601. The next prime is 6858230979661. The reversal of 6858230979640 is 469790328586.

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, 11418927 + ... + 12004513.

Almost surely, 2^{6858230979640} is an apocalyptic number.

It is an amenable number.

6858230979640 is an abundant number, since it is smaller than the sum of its proper divisors (8572867778840).

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

6858230979640 is a wasteful number, since it uses less digits than its factorization.

6858230979640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878391 (or 878387 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 67.

The spelling of 6858230979640 in words is "six trillion, eight hundred fifty-eight billion, two hundred thirty million, nine hundred seventy-nine thousand, six hundred forty".