2666868502 has 4 divisors (see below), whose sum is σ = 4000302756. Its totient is φ = 1333434250.

The previous prime is 2666868497. The next prime is 2666868509. The reversal of 2666868502 is 2058686662.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2666868502² = 14224375213919448008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666868509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666717124 + ... + 666717127.

It is an arithmetic number, because the mean of its divisors is an integer number (1000075689).

Almost surely, 2^2666868502 is an apocalyptic number.

2666868502 is a deficient number, since it is larger than the sum of its proper divisors (1333434254).

2666868502 is a wasteful number, since it uses less digits than its factorization.

2666868502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333434253.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The square root of 2666868502 is about 51641.7321746666. The cubic root of 2666868502 is about 1386.7575340196.

The spelling of 2666868502 in words is "two billion, six hundred sixty-six million, eight hundred sixty-eight thousand, five hundred two".