6866742576 has 40 divisors (see below), whose sum is σ = 18672723520. Its totient is φ = 2168444736.

The previous prime is 6866742521. The next prime is 6866742577. The reversal of 6866742576 is 6752476686.

It is a super-2 number, since 2×6866742576² = 94304307210102231552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (6866742577) 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, 3763750 + ... + 3765573.

It is an arithmetic number, because the mean of its divisors is an integer number (466818088).

Almost surely, 2^6866742576 is an apocalyptic number.

It is an amenable number.

6866742576 is an abundant number, since it is smaller than the sum of its proper divisors (11805980944).

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

6866742576 is a wasteful number, since it uses less digits than its factorization.

6866742576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7529353 (or 7529347 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 57.

The square root of 6866742576 is about 82865.8106579547. The cubic root of 6866742576 is about 1900.7146504618.

The spelling of 6866742576 in words is "six billion, eight hundred sixty-six million, seven hundred forty-two thousand, five hundred seventy-six".