1235979584668 has 24 divisors (see below), whose sum is σ = 2174053576464. Its totient is φ = 614821737600.

The previous prime is 1235979584663. The next prime is 1235979584681. The reversal of 1235979584668 is 8664859795321.

It is a self number, because there is not a number n which added to its sum of digits gives 1235979584668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235979584663) 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, 30901923 + ... + 30941893.

It is an arithmetic number, because the mean of its divisors is an integer number (90585565686).

Almost surely, 2^{1235979584668} is an apocalyptic number.

It is an amenable number.

1235979584668 is a deficient number, since it is larger than the sum of its proper divisors (938073991796).

1235979584668 is a wasteful number, since it uses less digits than its factorization.

1235979584668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79413 (or 79411 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 73.

The spelling of 1235979584668 in words is "one trillion, two hundred thirty-five billion, nine hundred seventy-nine million, five hundred eighty-four thousand, six hundred sixty-eight".