1217077505283 has 16 divisors (see below), whose sum is σ = 1646896285440. Its totient is φ = 799376326944.

The previous prime is 1217077505269. The next prime is 1217077505299. The reversal of 1217077505283 is 3825057707121.

It is a happy number.

It is not a de Polignac number, because 1217077505283 - 2³⁰ = 1216003763459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1217077505263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6718216 + ... + 6896997.

It is an arithmetic number, because the mean of its divisors is an integer number (102931017840).

Almost surely, 2^{1217077505283} is an apocalyptic number.

1217077505283 is a deficient number, since it is larger than the sum of its proper divisors (429818780157).

1217077505283 is a wasteful number, since it uses less digits than its factorization.

1217077505283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615658.

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 1217077505283 in words is "one trillion, two hundred seventeen billion, seventy-seven million, five hundred five thousand, two hundred eighty-three".