27777470040 has 96 divisors (see below), whose sum is σ = 90297979200. Its totient is φ = 7405585920.

The previous prime is 27777470027. The next prime is 27777470069. The reversal of 27777470040 is 4007477772.

27777470040 is a `hidden beast` number, since 2 + 77 + 77 + 470 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 in 23 ways as a sum of consecutive naturals, for example, 2457121 + ... + 2468399.

It is an arithmetic number, because the mean of its divisors is an integer number (940603950).

Almost surely, 2^27777470040 is an apocalyptic number.

27777470040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27777470040 is an abundant number, since it is smaller than the sum of its proper divisors (62520509160).

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

27777470040 is a wasteful number, since it uses less digits than its factorization.

27777470040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18137 (or 18130 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

The spelling of 27777470040 in words is "twenty-seven billion, seven hundred seventy-seven million, four hundred seventy thousand, forty".