27343749997 has 4 divisors (see below), whose sum is σ = 27345840480. Its totient is φ = 27341659516.

The previous prime is 27343749989. The next prime is 27343750013. The reversal of 27343749997 is 79994734372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27343749997 - 2³ = 27343749989 is a prime.

It is a super-3 number, since 3×27343749997³ (a number of 32 digits) contains 333 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 (27343749497) 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, 1025497 + ... + 1051822.

It is an arithmetic number, because the mean of its divisors is an integer number (6836460120).

Almost surely, 2^27343749997 is an apocalyptic number.

It is an amenable number.

27343749997 is a deficient number, since it is larger than the sum of its proper divisors (2090483).

27343749997 is a wasteful number, since it uses less digits than its factorization.

27343749997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090482.

The product of its digits is 72013536, while the sum is 64.

The spelling of 27343749997 in words is "twenty-seven billion, three hundred forty-three million, seven hundred forty-nine thousand, nine hundred ninety-seven".