27747870701 has 4 divisors (see below), whose sum is σ = 27749657472. Its totient is φ = 27746083932.

The previous prime is 27747870697. The next prime is 27747870727. The reversal of 27747870701 is 10707874772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27747870701 - 2² = 27747870697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27747870701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27747870791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869885 + ... + 901218.

It is an arithmetic number, because the mean of its divisors is an integer number (6937414368).

Almost surely, 2^27747870701 is an apocalyptic number.

It is an amenable number.

27747870701 is a deficient number, since it is larger than the sum of its proper divisors (1786771).

27747870701 is a wasteful number, since it uses less digits than its factorization.

27747870701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786770.

The product of its (nonzero) digits is 1075648, while the sum is 50.

The spelling of 27747870701 in words is "twenty-seven billion, seven hundred forty-seven million, eight hundred seventy thousand, seven hundred one".