2026699866 has 40 divisors (see below), whose sum is σ = 4780332480. Its totient is φ = 640009512.

The previous prime is 2026699859. The next prime is 2026699889. The reversal of 2026699866 is 6689966202.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 326146 + ... + 332301.

It is an arithmetic number, because the mean of its divisors is an integer number (119508312).

Almost surely, 2^2026699866 is an apocalyptic number.

2026699866 is an abundant number, since it is smaller than the sum of its proper divisors (2753632614).

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

2026699866 is a wasteful number, since it uses less digits than its factorization.

2026699866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658480 (or 658471 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 2026699866 is about 45018.8834379530. The cubic root of 2026699866 is about 1265.5029045016.

The spelling of 2026699866 in words is "two billion, twenty-six million, six hundred ninety-nine thousand, eight hundred sixty-six".