27953066238 has 64 divisors (see below), whose sum is σ = 61805348352. Its totient is φ = 8383288320.

The previous prime is 27953066227. The next prime is 27953066263. The reversal of 27953066238 is 83266035972.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 6292098 + ... + 6296538.

It is an arithmetic number, because the mean of its divisors is an integer number (965708568).

Almost surely, 2^27953066238 is an apocalyptic number.

27953066238 is an abundant number, since it is smaller than the sum of its proper divisors (33852282114).

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

27953066238 is a wasteful number, since it uses less digits than its factorization.

27953066238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 27953066238 in words is "twenty-seven billion, nine hundred fifty-three million, sixty-six thousand, two hundred thirty-eight".