1298992554999 has 6 divisors (see below), whose sum is σ = 1876322579456. Its totient is φ = 865995036660.

The previous prime is 1298992554997. The next prime is 1298992555031. The reversal of 1298992554999 is 9994552998921.

1298992554999 is a `hidden beast` number, since 1 + 29 + 89 + 9 + 25 + 5 + 499 + 9 = 666.

It is not a de Polignac number, because 1298992554999 - 2¹ = 1298992554997 is a prime.

It is a super-3 number, since 3×1298992554999³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298992554997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72166253047 + ... + 72166253064.

Almost surely, 2^{1298992554999} is an apocalyptic number.

1298992554999 is a deficient number, since it is larger than the sum of its proper divisors (577330024457).

1298992554999 is a wasteful number, since it uses less digits than its factorization.

1298992554999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144332506117 (or 144332506114 counting only the distinct ones).

The product of its digits is 1700611200, while the sum is 81.

The spelling of 1298992554999 in words is "one trillion, two hundred ninety-eight billion, nine hundred ninety-two million, five hundred fifty-four thousand, nine hundred ninety-nine".