1351633456889 has 2 divisors, whose sum is σ = 1351633456890. Its totient is φ = 1351633456888.

The previous prime is 1351633456861. The next prime is 1351633456933. The reversal of 1351633456889 is 9886543361531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313086810000 + 38546646889 = 1145900^2 + 196333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351633456889 is a prime.

It is a super-4 number, since 4×1351633456889⁴ (a number of 50 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (1351633456289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675816728444 + 675816728445.

It is an arithmetic number, because the mean of its divisors is an integer number (675816728445).

Almost surely, 2^{1351633456889} is an apocalyptic number.

It is an amenable number.

1351633456889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351633456889 is an equidigital number, since it uses as much as digits as its factorization.

1351633456889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55987200, while the sum is 62.

The spelling of 1351633456889 in words is "one trillion, three hundred fifty-one billion, six hundred thirty-three million, four hundred fifty-six thousand, eight hundred eighty-nine".