27777280468 has 48 divisors (see below), whose sum is σ = 56008592640. Its totient is φ = 11807656704.

The previous prime is 27777280463. The next prime is 27777280477. The reversal of 27777280468 is 86408277772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27777280463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707718 + ... + 1723906.

It is an arithmetic number, because the mean of its divisors is an integer number (1166845680).

Almost surely, 2^27777280468 is an apocalyptic number.

27777280468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27777280468 is an abundant number, since it is smaller than the sum of its proper divisors (28231312172).

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

27777280468 is a wasteful number, since it uses less digits than its factorization.

27777280468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16696 (or 16694 counting only the distinct ones).

The product of its (nonzero) digits is 14751744, while the sum is 58.

The spelling of 27777280468 in words is "twenty-seven billion, seven hundred seventy-seven million, two hundred eighty thousand, four hundred sixty-eight".