27931696026659 has 16 divisors (see below), whose sum is σ = 30270253440000. Its totient is φ = 25686471919680.

The previous prime is 27931696026653. The next prime is 27931696026701. The reversal of 27931696026659 is 95662069613972.

It is not a de Polignac number, because 27931696026659 - 2¹² = 27931696022563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27931696026592 and 27931696026601.

It is not an unprimeable number, because it can be changed into a prime (27931696026653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89935019 + ... + 90245060.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890840000).

Almost surely, 2^{27931696026659} is an apocalyptic number.

27931696026659 is a deficient number, since it is larger than the sum of its proper divisors (2338557413341).

27931696026659 is a wasteful number, since it uses less digits than its factorization.

27931696026659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180180338.

The product of its (nonzero) digits is 396809280, while the sum is 71.

The spelling of 27931696026659 in words is "twenty-seven trillion, nine hundred thirty-one billion, six hundred ninety-six million, twenty-six thousand, six hundred fifty-nine".