28701895434 has 8 divisors (see below), whose sum is σ = 57403790880. Its totient is φ = 9567298476.

The previous prime is 28701895429. The next prime is 28701895451. The reversal of 28701895434 is 43459810782.

It is a happy number.

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

28701895434 is an admirable 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, 2391824614 + ... + 2391824625.

It is an arithmetic number, because the mean of its divisors is an integer number (7175473860).

Almost surely, 2^28701895434 is an apocalyptic number.

28701895434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28701895434 is a wasteful number, since it uses less digits than its factorization.

28701895434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783649244.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 28701895434 in words is "twenty-eight billion, seven hundred one million, eight hundred ninety-five thousand, four hundred thirty-four".