27312477020 has 24 divisors (see below), whose sum is σ = 57452948784. Its totient is φ = 10906562816.

The previous prime is 27312476993. The next prime is 27312477041. The reversal of 27312477020 is 2077421372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139594 + ... + 1163313.

It is an arithmetic number, because the mean of its divisors is an integer number (2393872866).

Almost surely, 2^27312477020 is an apocalyptic number.

27312477020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27312477020 is an abundant number, since it is smaller than the sum of its proper divisors (30140471764).

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

27312477020 is a wasteful number, since it uses less digits than its factorization.

27312477020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303509 (or 2303507 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

Adding to 27312477020 its reverse (2077421372), we get a palindrome (29389898392).

The spelling of 27312477020 in words is "twenty-seven billion, three hundred twelve million, four hundred seventy-seven thousand, twenty".