26643029268 has 12 divisors (see below), whose sum is σ = 62167068320. Its totient is φ = 8881009752.

The previous prime is 26643029209. The next prime is 26643029327. The reversal of 26643029268 is 86292034662.

It is an interprime number because it is at equal distance from previous prime (26643029209) and next prime (26643029327).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110126208 + ... + 1110126231.

Almost surely, 2^26643029268 is an apocalyptic number.

It is an amenable number.

26643029268 is an abundant number, since it is smaller than the sum of its proper divisors (35524039052).

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

26643029268 is a wasteful number, since it uses less digits than its factorization.

26643029268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220252446 (or 2220252444 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 26643029268 in words is "twenty-six billion, six hundred forty-three million, twenty-nine thousand, two hundred sixty-eight".