1355427602657 has 2 divisors, whose sum is σ = 1355427602658. Its totient is φ = 1355427602656.

The previous prime is 1355427602653. The next prime is 1355427602699. The reversal of 1355427602657 is 7562067245531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964247405521 + 391180197136 = 981961^2 + 625444^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355427602657 - 2² = 1355427602653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355427602599 and 1355427602608.

It is not a weakly prime, because it can be changed into another prime (1355427602651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677713801328 + 677713801329.

It is an arithmetic number, because the mean of its divisors is an integer number (677713801329).

Almost surely, 2^{1355427602657} is an apocalyptic number.

It is an amenable number.

1355427602657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355427602657 is an equidigital number, since it uses as much as digits as its factorization.

1355427602657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 1355427602657 in words is "one trillion, three hundred fifty-five billion, four hundred twenty-seven million, six hundred two thousand, six hundred fifty-seven".