27477506516 has 6 divisors (see below), whose sum is σ = 48085636410. Its totient is φ = 13738753256.

The previous prime is 27477506503. The next prime is 27477506543. The reversal of 27477506516 is 61560577472.

It can be written as a sum of positive squares in only one way, i.e., 21446430916 + 6031075600 = 146446^2 + 77660^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434688311 + ... + 3434688318.

It is an arithmetic number, because the mean of its divisors is an integer number (8014272735).

Almost surely, 2^27477506516 is an apocalyptic number.

It is an amenable number.

27477506516 is a deficient number, since it is larger than the sum of its proper divisors (20608129894).

27477506516 is a wasteful number, since it uses less digits than its factorization.

27477506516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6869376633 (or 6869376631 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 27477506516 in words is "twenty-seven billion, four hundred seventy-seven million, five hundred six thousand, five hundred sixteen".