1299104434657 has 16 divisors (see below), whose sum is σ = 1384962630912. Its totient is φ = 1214307901440.

The previous prime is 1299104434651. The next prime is 1299104434699. The reversal of 1299104434657 is 7564344019921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1299104434657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1299104434598 and 1299104434607.

It is not an unprimeable number, because it can be changed into a prime (1299104434651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3074932 + ... + 3471802.

It is an arithmetic number, because the mean of its divisors is an integer number (86560164432).

Almost surely, 2^{1299104434657} is an apocalyptic number.

1299104434657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1299104434657 is a deficient number, since it is larger than the sum of its proper divisors (85858196255).

1299104434657 is a wasteful number, since it uses less digits than its factorization.

1299104434657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398208.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 1299104434657 in words is "one trillion, two hundred ninety-nine billion, one hundred four million, four hundred thirty-four thousand, six hundred fifty-seven".