169428236117824 has 28 divisors (see below), whose sum is σ = 336224615990368. Its totient is φ = 84710222640000.

The previous prime is 169428236117773. The next prime is 169428236117843. The reversal of 169428236117824 is 428711632824961.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59462982 + ... + 62247109.

It is an arithmetic number, because the mean of its divisors is an integer number (12008021999656).

Almost surely, 2^{169428236117824} is an apocalyptic number.

It is an amenable number.

169428236117824 is a deficient number, since it is larger than the sum of its proper divisors (166796379872544).

169428236117824 is a wasteful number, since it uses less digits than its factorization.

169428236117824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121731854 (or 121731844 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 64.

The spelling of 169428236117824 in words is "one hundred sixty-nine trillion, four hundred twenty-eight billion, two hundred thirty-six million, one hundred seventeen thousand, eight hundred twenty-four".