27133743231 has 64 divisors (see below), whose sum is σ = 51203404800. Its totient is φ = 13824857088.

The previous prime is 27133743229. The next prime is 27133743233. The reversal of 27133743231 is 13234733172.

It is an interprime number because it is at equal distance from previous prime (27133743229) and next prime (27133743233).

It is not a de Polignac number, because 27133743231 - 2¹ = 27133743229 is a prime.

It is a super-2 number, since 2×27133743231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27133743233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161190 + ... + 283283.

It is an arithmetic number, because the mean of its divisors is an integer number (800053200).

Almost surely, 2^27133743231 is an apocalyptic number.

27133743231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27133743231 is a deficient number, since it is larger than the sum of its proper divisors (24069661569).

27133743231 is a wasteful number, since it uses less digits than its factorization.

27133743231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444525 (or 444519 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The spelling of 27133743231 in words is "twenty-seven billion, one hundred thirty-three million, seven hundred forty-three thousand, two hundred thirty-one".