27121758119 has 4 divisors (see below), whose sum is σ = 27147564840. Its totient is φ = 27095951400.

The previous prime is 27121758089. The next prime is 27121758133. The reversal of 27121758119 is 91185712172.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27121758119 - 2⁸ = 27121757863 is a prime.

It is a super-2 number, since 2×27121758119² (a number of 22 digits) contains 22 as substring.

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 27121758119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27121758199) 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, 12901784 + ... + 12903885.

It is an arithmetic number, because the mean of its divisors is an integer number (6786891210).

Almost surely, 2^27121758119 is an apocalyptic number.

27121758119 is a deficient number, since it is larger than the sum of its proper divisors (25806721).

27121758119 is a wasteful number, since it uses less digits than its factorization.

27121758119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25806720.

The product of its digits is 70560, while the sum is 44.

The spelling of 27121758119 in words is "twenty-seven billion, one hundred twenty-one million, seven hundred fifty-eight thousand, one hundred nineteen".