281474977042547 has 2 divisors, whose sum is σ = 281474977042548. Its totient is φ = 281474977042546.

The previous prime is 281474977042397. The next prime is 281474977042573. The reversal of 281474977042547 is 745240779474182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281474977042547 - 2³⁴ = 281457797173363 is a prime.

It is a super-2 number, since 2×281474977042547² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (281474977042247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140737488521273 + 140737488521274.

It is an arithmetic number, because the mean of its divisors is an integer number (140737488521274).

Almost surely, 2^{281474977042547} is an apocalyptic number.

281474977042547 is a deficient number, since it is larger than the sum of its proper divisors (1).

281474977042547 is an equidigital number, since it uses as much as digits as its factorization.

281474977042547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 885104640, while the sum is 71.

The spelling of 281474977042547 in words is "two hundred eighty-one trillion, four hundred seventy-four billion, nine hundred seventy-seven million, forty-two thousand, five hundred forty-seven".