1212798769936 has 40 divisors (see below), whose sum is σ = 2566192878144. Its totient is φ = 551869422720.

The previous prime is 1212798769879. The next prime is 1212798769939. The reversal of 1212798769936 is 6399678972121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212798769939) 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, 41046946 + ... + 41076481.

Almost surely, 2^{1212798769936} is an apocalyptic number.

1212798769936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1212798769936 is an abundant number, since it is smaller than the sum of its proper divisors (1353394108208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212798769936 is a wasteful number, since it uses less digits than its factorization.

1212798769936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82123519 (or 82123513 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 70.

The spelling of 1212798769936 in words is "one trillion, two hundred twelve billion, seven hundred ninety-eight million, seven hundred sixty-nine thousand, nine hundred thirty-six".