1219028736788 has 24 divisors (see below), whose sum is σ = 2164268139264. Its totient is φ = 600673724000.

The previous prime is 1219028736787. The next prime is 1219028736799. The reversal of 1219028736788 is 8876378209121.

It is a super-2 number, since 2×1219028736788² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1219028736788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219028736787) 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, 245195 + ... + 1580562.

It is an arithmetic number, because the mean of its divisors is an integer number (90177839136).

Almost surely, 2^{1219028736788} is an apocalyptic number.

It is an amenable number.

1219028736788 is a deficient number, since it is larger than the sum of its proper divisors (945239402476).

1219028736788 is a wasteful number, since it uses less digits than its factorization.

1219028736788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828183 (or 1828181 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 62.

The spelling of 1219028736788 in words is "one trillion, two hundred nineteen billion, twenty-eight million, seven hundred thirty-six thousand, seven hundred eighty-eight".