1298023669751 has 2 divisors, whose sum is σ = 1298023669752. Its totient is φ = 1298023669750.

The previous prime is 1298023669717. The next prime is 1298023669757. The reversal of 1298023669751 is 1579663208921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1298023669751 - 2¹⁰ = 1298023668727 is a prime.

It is a super-2 number, since 2×1298023669751² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1298023669757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649011834875 + 649011834876.

It is an arithmetic number, because the mean of its divisors is an integer number (649011834876).

Almost surely, 2^{1298023669751} is an apocalyptic number.

1298023669751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298023669751 is an equidigital number, since it uses as much as digits as its factorization.

1298023669751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 1298023669751 in words is "one trillion, two hundred ninety-eight billion, twenty-three million, six hundred sixty-nine thousand, seven hundred fifty-one".