6870838581 has 8 divisors (see below), whose sum is σ = 10179020160. Its totient is φ = 4580559036.

The previous prime is 6870838561. The next prime is 6870838603. The reversal of 6870838581 is 1858380786.

It is a happy number.

It is not a de Polignac number, because 6870838581 - 2¹⁴ = 6870822197 is a prime.

It is a super-2 number, since 2×6870838581² = 94416845612316187122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6870838511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127237725 + ... + 127237778.

It is an arithmetic number, because the mean of its divisors is an integer number (1272377520).

Almost surely, 2^6870838581 is an apocalyptic number.

It is an amenable number.

6870838581 is a deficient number, since it is larger than the sum of its proper divisors (3308181579).

6870838581 is a wasteful number, since it uses less digits than its factorization.

6870838581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254475512 (or 254475506 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 6870838581 is about 82890.5216595963. The cubic root of 6870838581 is about 1901.0925001315.

The spelling of 6870838581 in words is "six billion, eight hundred seventy million, eight hundred thirty-eight thousand, five hundred eighty-one".