1219682769136 has 80 divisors (see below), whose sum is σ = 2628058182400. Its totient is φ = 544553902080.

The previous prime is 1219682769133. The next prime is 1219682769163. The reversal of 1219682769136 is 6319672869121.

It is a super-2 number, since 2×1219682769136² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219682769133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16683190 + ... + 16756138.

It is an arithmetic number, because the mean of its divisors is an integer number (32850727280).

Almost surely, 2^{1219682769136} is an apocalyptic number.

1219682769136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219682769136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314029091200).

1219682769136 is an abundant number, since it is smaller than the sum of its proper divisors (1408375413264).

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

1219682769136 is a wasteful number, since it uses less digits than its factorization.

1219682769136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75594 (or 75588 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The spelling of 1219682769136 in words is "one trillion, two hundred nineteen billion, six hundred eighty-two million, seven hundred sixty-nine thousand, one hundred thirty-six".