26640281414 has 4 divisors (see below), whose sum is σ = 39960422124. Its totient is φ = 13320140706.

The previous prime is 26640281411. The next prime is 26640281429. The reversal of 26640281414 is 41418204662.

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

It is a super-2 number, since 2×26640281414² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26640281411) 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, 6660070352 + ... + 6660070355.

It is an arithmetic number, because the mean of its divisors is an integer number (9990105531).

Almost surely, 2^26640281414 is an apocalyptic number.

26640281414 is a deficient number, since it is larger than the sum of its proper divisors (13320140710).

26640281414 is a wasteful number, since it uses less digits than its factorization.

26640281414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320140709.

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 26640281414 in words is "twenty-six billion, six hundred forty million, two hundred eighty-one thousand, four hundred fourteen".