27738101765 has 16 divisors (see below), whose sum is σ = 38447680320. Its totient is φ = 18986507520.

The previous prime is 27738101753. The next prime is 27738101779. The reversal of 27738101765 is 56710183772.

It is not a de Polignac number, because 27738101765 - 2³⁰ = 26664359941 is a prime.

It is a super-2 number, since 2×27738101765² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14832275 + ... + 14834144.

It is an arithmetic number, because the mean of its divisors is an integer number (2402980020).

Almost surely, 2^27738101765 is an apocalyptic number.

It is an amenable number.

27738101765 is a deficient number, since it is larger than the sum of its proper divisors (10709578555).

27738101765 is a wasteful number, since it uses less digits than its factorization.

27738101765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29666452.

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 27738101765 in words is "twenty-seven billion, seven hundred thirty-eight million, one hundred one thousand, seven hundred sixty-five".