1212935779846 has 16 divisors (see below), whose sum is σ = 2081106399744. Its totient is φ = 519382639944.

The previous prime is 1212935779841. The next prime is 1212935779859. The reversal of 1212935779846 is 6489775392121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212935779841) 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, 37231470 + ... + 37264033.

It is an arithmetic number, because the mean of its divisors is an integer number (130069149984).

Almost surely, 2^{1212935779846} is an apocalyptic number.

1212935779846 is a deficient number, since it is larger than the sum of its proper divisors (868170619898).

1212935779846 is a wasteful number, since it uses less digits than its factorization.

1212935779846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74496675.

The product of its digits is 45722880, while the sum is 64.

The spelling of 1212935779846 in words is "one trillion, two hundred twelve billion, nine hundred thirty-five million, seven hundred seventy-nine thousand, eight hundred forty-six".