27922839487 has 16 divisors (see below), whose sum is σ = 28697623552. Its totient is φ = 27159066720.

The previous prime is 27922839479. The next prime is 27922839491. The reversal of 27922839487 is 78493822972.

It is a cyclic number.

It is not a de Polignac number, because 27922839487 - 2³ = 27922839479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27922839407) 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 in 15 ways as a sum of consecutive naturals, for example, 4941898 + ... + 4947544.

It is an arithmetic number, because the mean of its divisors is an integer number (1793601472).

Almost surely, 2^27922839487 is an apocalyptic number.

27922839487 is a deficient number, since it is larger than the sum of its proper divisors (774784065).

27922839487 is a wasteful number, since it uses less digits than its factorization.

27922839487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6598.

The product of its digits is 24385536, while the sum is 61.

The spelling of 27922839487 in words is "twenty-seven billion, nine hundred twenty-two million, eight hundred thirty-nine thousand, four hundred eighty-seven".