27006780757 has 8 divisors (see below), whose sum is σ = 30742896960. Its totient is φ = 23484156960.

The previous prime is 27006780743. The next prime is 27006780761. The reversal of 27006780757 is 75708760072.

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

It is not a de Polignac number, because 27006780757 - 2¹¹ = 27006778709 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 27006780757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27006780727) 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, 53372832 + ... + 53373337.

It is an arithmetic number, because the mean of its divisors is an integer number (3842862120).

Almost surely, 2^27006780757 is an apocalyptic number.

It is an amenable number.

27006780757 is a deficient number, since it is larger than the sum of its proper divisors (3736116203).

27006780757 is a wasteful number, since it uses less digits than its factorization.

27006780757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106746203.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 27006780757 in words is "twenty-seven billion, six million, seven hundred eighty thousand, seven hundred fifty-seven".