27774216620 has 24 divisors (see below), whose sum is σ = 58502079888. Its totient is φ = 11076120000.

The previous prime is 27774216581. The next prime is 27774216623. The reversal of 27774216620 is 2661247772.

It is not an unprimeable number, because it can be changed into a prime (27774216623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091131 + ... + 2104370.

It is an arithmetic number, because the mean of its divisors is an integer number (2437586662).

Almost surely, 2^27774216620 is an apocalyptic number.

27774216620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27774216620 is an abundant number, since it is smaller than the sum of its proper divisors (30727863268).

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

27774216620 is a wasteful number, since it uses less digits than its factorization.

27774216620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195841 (or 4195839 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 27774216620 in words is "twenty-seven billion, seven hundred seventy-four million, two hundred sixteen thousand, six hundred twenty".