27142831672547 has 2 divisors, whose sum is σ = 27142831672548. Its totient is φ = 27142831672546.

The previous prime is 27142831672543. The next prime is 27142831672681. The reversal of 27142831672547 is 74527613824172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27142831672547 - 2² = 27142831672543 is a prime.

It is a super-2 number, since 2×27142831672547² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27142831672543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13571415836273 + 13571415836274.

It is an arithmetic number, because the mean of its divisors is an integer number (13571415836274).

Almost surely, 2^{27142831672547} is an apocalyptic number.

27142831672547 is a deficient number, since it is larger than the sum of its proper divisors (1).

27142831672547 is an equidigital number, since it uses as much as digits as its factorization.

27142831672547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31610880, while the sum is 59.

The spelling of 27142831672547 in words is "twenty-seven trillion, one hundred forty-two billion, eight hundred thirty-one million, six hundred seventy-two thousand, five hundred forty-seven".