1481474668129 has 2 divisors, whose sum is σ = 1481474668130. Its totient is φ = 1481474668128.

The previous prime is 1481474668081. The next prime is 1481474668159. The reversal of 1481474668129 is 9218664741841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1406536700625 + 74937967504 = 1185975^2 + 273748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1481474668129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1481474668159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740737334064 + 740737334065.

It is an arithmetic number, because the mean of its divisors is an integer number (740737334065).

Almost surely, 2^{1481474668129} is an apocalyptic number.

It is an amenable number.

1481474668129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481474668129 is an equidigital number, since it uses as much as digits as its factorization.

1481474668129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 61.

The spelling of 1481474668129 in words is "one trillion, four hundred eighty-one billion, four hundred seventy-four million, six hundred sixty-eight thousand, one hundred twenty-nine".