1268117535 has 16 divisors (see below), whose sum is σ = 2117205504. Its totient is φ = 646923552.

The previous prime is 1268117531. The next prime is 1268117537. The reversal of 1268117535 is 5357118621.

It is not a de Polignac number, because 1268117535 - 2² = 1268117531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1268117493 and 1268117502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268117531) 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 15 ways as a sum of consecutive naturals, for example, 1837507 + ... + 1838196.

It is an arithmetic number, because the mean of its divisors is an integer number (132325344).

Almost surely, 2^1268117535 is an apocalyptic number.

1268117535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1268117535 is a deficient number, since it is larger than the sum of its proper divisors (849087969).

1268117535 is a wasteful number, since it uses less digits than its factorization.

1268117535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675734.

The product of its digits is 50400, while the sum is 39.

The square root of 1268117535 is about 35610.6379471079. The cubic root of 1268117535 is about 1082.3968073987.

The spelling of 1268117535 in words is "one billion, two hundred sixty-eight million, one hundred seventeen thousand, five hundred thirty-five".