6868666090 has 64 divisors (see below), whose sum is σ = 14598662400. Its totient is φ = 2293885440.

The previous prime is 6868666061. The next prime is 6868666097. The reversal of 6868666090 is 906668686.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (6868666097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272502 + ... + 296638.

It is an arithmetic number, because the mean of its divisors is an integer number (228104100).

Almost surely, 2^6868666090 is an apocalyptic number.

6868666090 is an abundant number, since it is smaller than the sum of its proper divisors (7729996310).

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

6868666090 is a wasteful number, since it uses less digits than its factorization.

6868666090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24367.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The square root of 6868666090 is about 82877.4160432141. The cubic root of 6868666090 is about 1900.8921101464.

The spelling of 6868666090 in words is "six billion, eight hundred sixty-eight million, six hundred sixty-six thousand, ninety".