27863923117 has 8 divisors (see below), whose sum is σ = 29509423416. Its totient is φ = 26219139072.

The previous prime is 27863923103. The next prime is 27863923123. The reversal of 27863923117 is 71132936872.

It can be written as a sum of positive squares in 4 ways, for example, as 191933316 + 27671989801 = 13854^2 + 166349^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27863923117 - 2¹⁵ = 27863890349 is a prime.

It is a super-2 number, since 2×27863923117² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27863923177) 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, 97908 + ... + 255565.

It is an arithmetic number, because the mean of its divisors is an integer number (3688677927).

Almost surely, 2^27863923117 is an apocalyptic number.

It is an amenable number.

27863923117 is a deficient number, since it is larger than the sum of its proper divisors (1645500299).

27863923117 is a wasteful number, since it uses less digits than its factorization.

27863923117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358127.

The product of its digits is 762048, while the sum is 49.

The spelling of 27863923117 in words is "twenty-seven billion, eight hundred sixty-three million, nine hundred twenty-three thousand, one hundred seventeen".