28058002642 has 8 divisors (see below), whose sum is σ = 42087920076. Its totient is φ = 14028695952.

The previous prime is 28058002633. The next prime is 28058002667. The reversal of 28058002642 is 24620085082.

It can be written as a sum of positive squares in 2 ways, for example, as 27986278681 + 71723961 = 167291^2 + 8469^2 .

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, 11853 + ... + 237184.

Almost surely, 2^28058002642 is an apocalyptic number.

28058002642 is a deficient number, since it is larger than the sum of its proper divisors (14029917434).

28058002642 is a wasteful number, since it uses less digits than its factorization.

28058002642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305372.

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 28058002642 in words is "twenty-eight billion, fifty-eight million, two thousand, six hundred forty-two".