28881622873454 has 48 divisors (see below), whose sum is σ = 47065383240480. Its totient is φ = 13286240922240.

The previous prime is 28881622873387. The next prime is 28881622873471. The reversal of 28881622873454 is 45437822618882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176909744 + ... + 177072924.

It is an arithmetic number, because the mean of its divisors is an integer number (980528817510).

Almost surely, 2^{28881622873454} is an apocalyptic number.

28881622873454 is a deficient number, since it is larger than the sum of its proper divisors (18183760367026).

28881622873454 is a wasteful number, since it uses less digits than its factorization.

28881622873454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164925 (or 164912 counting only the distinct ones).

The product of its digits is 330301440, while the sum is 68.

The spelling of 28881622873454 in words is "twenty-eight trillion, eight hundred eighty-one billion, six hundred twenty-two million, eight hundred seventy-three thousand, four hundred fifty-four".