27768728202 has 16 divisors (see below), whose sum is σ = 55543495392. Its totient is φ = 9255236240.

The previous prime is 27768728191. The next prime is 27768728213. The reversal of 27768728202 is 20282786772.

It is an interprime number because it is at equal distance from previous prime (27768728191) and next prime (27768728213).

It is a super-2 number, since 2×27768728202² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190713 + ... + 303164.

It is an arithmetic number, because the mean of its divisors is an integer number (3471468462).

Almost surely, 2^27768728202 is an apocalyptic number.

27768728202 is an abundant number, since it is smaller than the sum of its proper divisors (27774767190).

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

27768728202 is a wasteful number, since it uses less digits than its factorization.

27768728202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503253.

The product of its (nonzero) digits is 2107392, while the sum is 51.

The spelling of 27768728202 in words is "twenty-seven billion, seven hundred sixty-eight million, seven hundred twenty-eight thousand, two hundred two".