69428172384 has 192 divisors, whose sum is σ = 220034304000. Its totient is φ = 21217282560.

The previous prime is 69428172377. The next prime is 69428172389. The reversal of 69428172384 is 48327182496.

69428172384 is a `hidden beast` number, since 6 + 94 + 2 + 8 + 172 + 384 = 666.

It is a super-2 number, since 2×69428172384² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 69428172384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69428172389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440682 + ... + 577110.

It is an arithmetic number, because the mean of its divisors is an integer number (1146012000).

Almost surely, 2^69428172384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69428172384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110017152000).

69428172384 is an abundant number, since it is smaller than the sum of its proper divisors (150606131616).

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

69428172384 is a wasteful number, since it uses less digits than its factorization.

69428172384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136498 (or 136484 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 69428172384 in words is "sixty-nine billion, four hundred twenty-eight million, one hundred seventy-two thousand, three hundred eighty-four".