1169993623428 has 384 divisors, whose sum is σ = 3636949155840. Its totient is φ = 318248507520.

The previous prime is 1169993623373. The next prime is 1169993623433. The reversal of 1169993623428 is 8243263999611.

1169993623428 is a `hidden beast` number, since 1 + 1 + 69 + 9 + 93 + 62 + 3 + 428 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 511583301 + ... + 511585587.

It is an arithmetic number, because the mean of its divisors is an integer number (9471221760).

Almost surely, 2^{1169993623428} is an apocalyptic number.

1169993623428 is a gapful number since it is divisible by the number (18) 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 1169993623428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818474577920).

1169993623428 is an abundant number, since it is smaller than the sum of its proper divisors (2466955532412).

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

1169993623428 is a wasteful number, since it uses less digits than its factorization.

1169993623428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 2676 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 63.

The spelling of 1169993623428 in words is "one trillion, one hundred sixty-nine billion, nine hundred ninety-three million, six hundred twenty-three thousand, four hundred twenty-eight".