1217475703982 has 16 divisors (see below), whose sum is σ = 1840649190912. Its totient is φ = 603926265600.

The previous prime is 1217475703981. The next prime is 1217475703999. The reversal of 1217475703982 is 2893075747121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217475703981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12660482 + ... + 12756282.

It is an arithmetic number, because the mean of its divisors is an integer number (115040574432).

Almost surely, 2^{1217475703982} is an apocalyptic number.

1217475703982 is a deficient number, since it is larger than the sum of its proper divisors (623173486930).

1217475703982 is a wasteful number, since it uses less digits than its factorization.

1217475703982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145963.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 1217475703982 in words is "one trillion, two hundred seventeen billion, four hundred seventy-five million, seven hundred three thousand, nine hundred eighty-two".