69334881428 has 12 divisors (see below), whose sum is σ = 121340384340. Its totient is φ = 34666200192.

The previous prime is 69334881419. The next prime is 69334881431. The reversal of 69334881428 is 82418843396.

It can be written as a sum of positive squares in 2 ways, for example, as 20651989264 + 48682892164 = 143708^2 + 220642^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

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, 178133 + ... + 412796.

It is an arithmetic number, because the mean of its divisors is an integer number (10111698695).

Almost surely, 2^69334881428 is an apocalyptic number.

It is an amenable number.

69334881428 is a deficient number, since it is larger than the sum of its proper divisors (52005502912).

69334881428 is a wasteful number, since it uses less digits than its factorization.

69334881428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620266 (or 620264 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The spelling of 69334881428 in words is "sixty-nine billion, three hundred thirty-four million, eight hundred eighty-one thousand, four hundred twenty-eight".