1351705477457 has 2 divisors, whose sum is σ = 1351705477458. Its totient is φ = 1351705477456.

The previous prime is 1351705477417. The next prime is 1351705477471. The reversal of 1351705477457 is 7547745071531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812649963841 + 539055513616 = 901471^2 + 734204^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351705477457 - 2²⁰ = 1351704428881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351705477417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675852738728 + 675852738729.

It is an arithmetic number, because the mean of its divisors is an integer number (675852738729).

Almost surely, 2^{1351705477457} is an apocalyptic number.

It is an amenable number.

1351705477457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351705477457 is an equidigital number, since it uses as much as digits as its factorization.

1351705477457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14406000, while the sum is 56.

The spelling of 1351705477457 in words is "one trillion, three hundred fifty-one billion, seven hundred five million, four hundred seventy-seven thousand, four hundred fifty-seven".