28881426345 has 8 divisors (see below), whose sum is σ = 46210282176. Its totient is φ = 15403427376.

The previous prime is 28881426323. The next prime is 28881426403. The reversal of 28881426345 is 54362418882.

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

It is not a de Polignac number, because 28881426345 - 2⁶ = 28881426281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962714197 + ... + 962714226.

It is an arithmetic number, because the mean of its divisors is an integer number (5776285272).

Almost surely, 2^28881426345 is an apocalyptic number.

It is an amenable number.

28881426345 is a deficient number, since it is larger than the sum of its proper divisors (17328855831).

28881426345 is a wasteful number, since it uses less digits than its factorization.

28881426345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925428431.

The product of its digits is 2949120, while the sum is 51.

The spelling of 28881426345 in words is "twenty-eight billion, eight hundred eighty-one million, four hundred twenty-six thousand, three hundred forty-five".