1299598888005 has 24 divisors (see below), whose sum is σ = 2457423352800. Its totient is φ = 630108551520.

The previous prime is 1299598888001. The next prime is 1299598888039. The reversal of 1299598888005 is 5008888959921.

1299598888005 is a `hidden beast` number, since 1 + 29 + 9 + 598 + 8 + 8 + 8 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 1299598888005 - 2² = 1299598888001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299598888001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1312725655 + ... + 1312726644.

It is an arithmetic number, because the mean of its divisors is an integer number (102392639700).

Almost surely, 2^{1299598888005} is an apocalyptic number.

1299598888005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1299598888005 is a deficient number, since it is larger than the sum of its proper divisors (1157824464795).

1299598888005 is a wasteful number, since it uses less digits than its factorization.

1299598888005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625452321 (or 2625452318 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 72.

The spelling of 1299598888005 in words is "one trillion, two hundred ninety-nine billion, five hundred ninety-eight million, eight hundred eighty-eight thousand, five".