27950831999 has 16 divisors (see below), whose sum is σ = 29914135680. Its totient is φ = 26038156320.

The previous prime is 27950831981. The next prime is 27950832001. The reversal of 27950831999 is 99913805972.

It is not a de Polignac number, because 27950831999 - 2¹² = 27950827903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27950831929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707657 + ... + 746109.

It is an arithmetic number, because the mean of its divisors is an integer number (1869633480).

Almost surely, 2^27950831999 is an apocalyptic number.

27950831999 is a deficient number, since it is larger than the sum of its proper divisors (1963303681).

27950831999 is a wasteful number, since it uses less digits than its factorization.

27950831999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39110.

The product of its (nonzero) digits is 11022480, while the sum is 62.

The spelling of 27950831999 in words is "twenty-seven billion, nine hundred fifty million, eight hundred thirty-one thousand, nine hundred ninety-nine".