27715241623 has 24 divisors (see below), whose sum is σ = 29640199680. Its totient is φ = 25897213440.

The previous prime is 27715241527. The next prime is 27715241639. The reversal of 27715241623 is 32614251772.

It is not a de Polignac number, because 27715241623 - 2²¹ = 27713144471 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 (27715241693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4375923 + ... + 4382251.

It is an arithmetic number, because the mean of its divisors is an integer number (1235008320).

Almost surely, 2^27715241623 is an apocalyptic number.

27715241623 is a deficient number, since it is larger than the sum of its proper divisors (1924958057).

27715241623 is a wasteful number, since it uses less digits than its factorization.

27715241623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555 (or 6526 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The spelling of 27715241623 in words is "twenty-seven billion, seven hundred fifteen million, two hundred forty-one thousand, six hundred twenty-three".