27686523480 has 128 divisors (see below), whose sum is σ = 103554823680. Its totient is φ = 5753041920.

The previous prime is 27686523467. The next prime is 27686523511. The reversal of 27686523480 is 8432568672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1488949 + ... + 1507428.

It is an arithmetic number, because the mean of its divisors is an integer number (809022060).

Almost surely, 2^27686523480 is an apocalyptic number.

27686523480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27686523480 is an abundant number, since it is smaller than the sum of its proper divisors (75868300200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27686523480 is a wasteful number, since it uses less digits than its factorization.

27686523480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996409 (or 2996405 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 27686523480 in words is "twenty-seven billion, six hundred eighty-six million, five hundred twenty-three thousand, four hundred eighty".