27440501243 has 16 divisors (see below), whose sum is σ = 28261094400. Its totient is φ = 26633967360.

The previous prime is 27440501239. The next prime is 27440501251. The reversal of 27440501243 is 34210504472.

It is a cyclic number.

It is not a de Polignac number, because 27440501243 - 2² = 27440501239 is a prime.

It is a super-2 number, since 2×27440501243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27440501743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973048 + ... + 1986906.

It is an arithmetic number, because the mean of its divisors is an integer number (1766318400).

Almost surely, 2^27440501243 is an apocalyptic number.

27440501243 is a deficient number, since it is larger than the sum of its proper divisors (820593157).

27440501243 is a wasteful number, since it uses less digits than its factorization.

27440501243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14362.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 27440501243 in words is "twenty-seven billion, four hundred forty million, five hundred one thousand, two hundred forty-three".