27774508916 has 72 divisors (see below), whose sum is σ = 62478292800. Its totient is φ = 10569525120.

The previous prime is 27774508913. The next prime is 27774508939. The reversal of 27774508916 is 61980547772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27774508913) 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, 50360 + ... + 241008.

Almost surely, 2^27774508916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27774508916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31239146400).

27774508916 is an abundant number, since it is smaller than the sum of its proper divisors (34703783884).

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

27774508916 is a wasteful number, since it uses less digits than its factorization.

27774508916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190725 (or 190712 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 27774508916 in words is "twenty-seven billion, seven hundred seventy-four million, five hundred eight thousand, nine hundred sixteen".