69365421639424 has 72 divisors (see below), whose sum is σ = 138966997857408. Its totient is φ = 34555710013440.

The previous prime is 69365421639403. The next prime is 69365421639491. The reversal of 69365421639424 is 42493612456396.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780245344 + ... + 780334240.

It is an arithmetic number, because the mean of its divisors is an integer number (1930097192464).

Almost surely, 2^{69365421639424} is an apocalyptic number.

69365421639424 is a gapful number since it is divisible by the number (64) 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 69365421639424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69483498928704).

69365421639424 is an abundant number, since it is smaller than the sum of its proper divisors (69601576217984).

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

69365421639424 is a wasteful number, since it uses less digits than its factorization.

69365421639424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100041 (or 100027 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 64.

The spelling of 69365421639424 in words is "sixty-nine trillion, three hundred sixty-five billion, four hundred twenty-one million, six hundred thirty-nine thousand, four hundred twenty-four".