1269924594997 has 2 divisors, whose sum is σ = 1269924594998. Its totient is φ = 1269924594996.

The previous prime is 1269924594989. The next prime is 1269924595003. The reversal of 1269924594997 is 7994954299621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1051432855236 + 218491739761 = 1025394^2 + 467431^2 .

It is an emirp because it is prime and its reverse (7994954299621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1269924594997 - 2³ = 1269924594989 is a prime.

It is a super-2 number, since 2×1269924594997² (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 (1269924594397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634962297498 + 634962297499.

It is an arithmetic number, because the mean of its divisors is an integer number (634962297499).

Almost surely, 2^{1269924594997} is an apocalyptic number.

It is an amenable number.

1269924594997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269924594997 is an equidigital number, since it uses as much as digits as its factorization.

1269924594997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793618560, while the sum is 76.

The spelling of 1269924594997 in words is "one trillion, two hundred sixty-nine billion, nine hundred twenty-four million, five hundred ninety-four thousand, nine hundred ninety-seven".