69426379648 has 32 divisors (see below), whose sum is σ = 138335641560. Its totient is φ = 34706846208.

The previous prime is 69426379637. The next prime is 69426379651. The reversal of 69426379648 is 84697362496.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 69426379648.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697411 + ... + 790717.

Almost surely, 2^69426379648 is an apocalyptic number.

It is an amenable number.

69426379648 is a deficient number, since it is larger than the sum of its proper divisors (68909261912).

69426379648 is an equidigital number, since it uses as much as digits as its factorization.

69426379648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99134 (or 99122 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 64.

The spelling of 69426379648 in words is "sixty-nine billion, four hundred twenty-six million, three hundred seventy-nine thousand, six hundred forty-eight".