27736770541 has 4 divisors (see below), whose sum is σ = 27880484572. Its totient is φ = 27593056512.

The previous prime is 27736770419. The next prime is 27736770547. The reversal of 27736770541 is 14507763772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4402986025 + 23333784516 = 66355^2 + 152754^2 .

It is a cyclic number.

It is not a de Polignac number, because 27736770541 - 2³³ = 19146835949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27736770547) 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, 71856726 + ... + 71857111.

It is an arithmetic number, because the mean of its divisors is an integer number (6970121143).

Almost surely, 2^27736770541 is an apocalyptic number.

It is an amenable number.

27736770541 is a deficient number, since it is larger than the sum of its proper divisors (143714031).

27736770541 is a wasteful number, since it uses less digits than its factorization.

27736770541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143714030.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 27736770541 in words is "twenty-seven billion, seven hundred thirty-six million, seven hundred seventy thousand, five hundred forty-one".