27958490679 has 16 divisors (see below), whose sum is σ = 43187025152. Its totient is φ = 15757426368.

The previous prime is 27958490663. The next prime is 27958490731. The reversal of 27958490679 is 97609485972.

It is not a de Polignac number, because 27958490679 - 2⁴ = 27958490663 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 (27958490179) 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, 9117349 + ... + 9120414.

It is an arithmetic number, because the mean of its divisors is an integer number (2699189072).

Almost surely, 2^27958490679 is an apocalyptic number.

27958490679 is a deficient number, since it is larger than the sum of its proper divisors (15228534473).

27958490679 is a wasteful number, since it uses less digits than its factorization.

27958490679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18237846.

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 27958490679 in words is "twenty-seven billion, nine hundred fifty-eight million, four hundred ninety thousand, six hundred seventy-nine".