69428993642 has 8 divisors (see below), whose sum is σ = 104348096100. Its totient is φ = 34646294944.

The previous prime is 69428993611. The next prime is 69428993651. The reversal of 69428993642 is 24639982496.

It can be written as a sum of positive squares in 2 ways, for example, as 68843789161 + 585204481 = 262381^2 + 24191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 34099667 + ... + 34101702.

Almost surely, 2^69428993642 is an apocalyptic number.

69428993642 is a deficient number, since it is larger than the sum of its proper divisors (34919102458).

69428993642 is a wasteful number, since it uses less digits than its factorization.

69428993642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68201880.

The product of its digits is 40310784, while the sum is 62.

The spelling of 69428993642 in words is "sixty-nine billion, four hundred twenty-eight million, nine hundred ninety-three thousand, six hundred forty-two".