1551710493643 has 2 divisors, whose sum is σ = 1551710493644. Its totient is φ = 1551710493642.

The previous prime is 1551710493587. The next prime is 1551710493661. The reversal of 1551710493643 is 3463940171551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1551710493643 - 2⁹ = 1551710493131 is a prime.

It is a super-2 number, since 2×1551710493643² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1551710493043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775855246821 + 775855246822.

It is an arithmetic number, because the mean of its divisors is an integer number (775855246822).

Almost surely, 2^{1551710493643} is an apocalyptic number.

1551710493643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551710493643 is an equidigital number, since it uses as much as digits as its factorization.

1551710493643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 1551710493643 in words is "one trillion, five hundred fifty-one billion, seven hundred ten million, four hundred ninety-three thousand, six hundred forty-three".