27919342837 has 16 divisors (see below), whose sum is σ = 29160576000. Its totient is φ = 26711942400.

The previous prime is 27919342831. The next prime is 27919342861. The reversal of 27919342837 is 73824391972.

It is a happy number.

It is not a de Polignac number, because 27919342837 - 2¹¹ = 27919340789 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 (27919342831) 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, 337789 + ... + 412237.

It is an arithmetic number, because the mean of its divisors is an integer number (1822536000).

Almost surely, 2^27919342837 is an apocalyptic number.

It is an amenable number.

27919342837 is a deficient number, since it is larger than the sum of its proper divisors (1241233163).

27919342837 is a wasteful number, since it uses less digits than its factorization.

27919342837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74676.

The product of its digits is 4572288, while the sum is 55.

The spelling of 27919342837 in words is "twenty-seven billion, nine hundred nineteen million, three hundred forty-two thousand, eight hundred thirty-seven".