27905131742 has 8 divisors (see below), whose sum is σ = 41859577656. Its totient is φ = 13951939192.

The previous prime is 27905131721. The next prime is 27905131783. The reversal of 27905131742 is 24713150972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27905131742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255548 + ... + 348015.

It is an arithmetic number, because the mean of its divisors is an integer number (5232447207).

Almost surely, 2^27905131742 is an apocalyptic number.

27905131742 is a deficient number, since it is larger than the sum of its proper divisors (13954445914).

27905131742 is a wasteful number, since it uses less digits than its factorization.

27905131742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626682.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 27905131742 in words is "twenty-seven billion, nine hundred five million, one hundred thirty-one thousand, seven hundred forty-two".