26941640663 has 8 divisors (see below), whose sum is σ = 32129161728. Its totient is φ = 22088798424.

The previous prime is 26941640651. The next prime is 26941640689. The reversal of 26941640663 is 36604614962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26941640663 - 2¹⁴ = 26941624279 is a prime.

It is a super-2 number, since 2×26941640663² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26941640623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83669531 + ... + 83669852.

It is an arithmetic number, because the mean of its divisors is an integer number (4016145216).

Almost surely, 2^26941640663 is an apocalyptic number.

26941640663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26941640663 is a deficient number, since it is larger than the sum of its proper divisors (5187521065).

26941640663 is a wasteful number, since it uses less digits than its factorization.

26941640663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167339413.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 26941640663 in words is "twenty-six billion, nine hundred forty-one million, six hundred forty thousand, six hundred sixty-three".