69438829824 has 720 divisors, whose sum is σ = 260382707200. Its totient is φ = 18289152000.

The previous prime is 69438829783. The next prime is 69438829841. The reversal of 69438829824 is 42892883496.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 92461449 + ... + 92462199.

Almost surely, 2^69438829824 is an apocalyptic number.

69438829824 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 69438829824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130191353600).

69438829824 is an abundant number, since it is smaller than the sum of its proper divisors (190943877376).

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

69438829824 is an equidigital number, since it uses as much as digits as its factorization.

69438829824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 776 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 63.

The spelling of 69438829824 in words is "sixty-nine billion, four hundred thirty-eight million, eight hundred twenty-nine thousand, eight hundred twenty-four".