1254713664761 has 2 divisors, whose sum is σ = 1254713664762. Its totient is φ = 1254713664760.

The previous prime is 1254713664647. The next prime is 1254713664769. The reversal of 1254713664761 is 1674663174521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1188023701225 + 66689963536 = 1089965^2 + 258244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254713664761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1254713664769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627356832380 + 627356832381.

It is an arithmetic number, because the mean of its divisors is an integer number (627356832381).

Almost surely, 2^{1254713664761} is an apocalyptic number.

It is an amenable number.

1254713664761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254713664761 is an equidigital number, since it uses as much as digits as its factorization.

1254713664761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 53.

The spelling of 1254713664761 in words is "one trillion, two hundred fifty-four billion, seven hundred thirteen million, six hundred sixty-four thousand, seven hundred sixty-one".