27375990240 has 48 divisors (see below), whose sum is σ = 86234370768. Its totient is φ = 7300263936.

The previous prime is 27375990211. The next prime is 27375990241. The reversal of 27375990240 is 4209957372.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 27375990240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27375990241) 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, 28516177 + ... + 28517136.

It is an arithmetic number, because the mean of its divisors is an integer number (1796549391).

Almost surely, 2^27375990240 is an apocalyptic number.

27375990240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27375990240 is an abundant number, since it is smaller than the sum of its proper divisors (58858380528).

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

27375990240 is a wasteful number, since it uses less digits than its factorization.

27375990240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57033331 (or 57033323 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 27375990240 in words is "twenty-seven billion, three hundred seventy-five million, nine hundred ninety thousand, two hundred forty".