26290317264 has 20 divisors (see below), whose sum is σ = 67916653056. Its totient is φ = 8763439072.

The previous prime is 26290317259. The next prime is 26290317269. The reversal of 26290317264 is 46271309262.

It is an interprime number because it is at equal distance from previous prime (26290317259) and next prime (26290317269).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26290317269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273857424 + ... + 273857519.

Almost surely, 2^26290317264 is an apocalyptic number.

26290317264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26290317264 is an abundant number, since it is smaller than the sum of its proper divisors (41626335792).

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

26290317264 is a wasteful number, since it uses less digits than its factorization.

26290317264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547714954 (or 547714948 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 26290317264 in words is "twenty-six billion, two hundred ninety million, three hundred seventeen thousand, two hundred sixty-four".