69489427392 has 896 divisors, whose sum is σ = 278656450560. Its totient is φ = 16422912000.

The previous prime is 69489427391. The next prime is 69489427417. The reversal of 69489427392 is 29372498496.

69489427392 is a `hidden beast` number, since 69 + 489 + 4 + 2 + 7 + 3 + 92 = 666.

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 not an unprimeable number, because it can be changed into a prime (69489427391) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 70120017 + ... + 70121007.

Almost surely, 2^69489427392 is an apocalyptic number.

69489427392 is a gapful number since it is divisible by the number (62) 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 69489427392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139328225280).

69489427392 is an abundant number, since it is smaller than the sum of its proper divisors (209167023168).

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

69489427392 is a wasteful number, since it uses less digits than its factorization.

69489427392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1062 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 69489427392 in words is "sixty-nine billion, four hundred eighty-nine million, four hundred twenty-seven thousand, three hundred ninety-two".