28801021454 has 16 divisors (see below), whose sum is σ = 44228646000. Its totient is φ = 14061416064.

The previous prime is 28801021453. The next prime is 28801021463. The reversal of 28801021454 is 45412010882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28801021451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801467 + ... + 836630.

It is an arithmetic number, because the mean of its divisors is an integer number (2764290375).

Almost surely, 2^28801021454 is an apocalyptic number.

28801021454 is a deficient number, since it is larger than the sum of its proper divisors (15427624546).

28801021454 is a wasteful number, since it uses less digits than its factorization.

28801021454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638307.

The product of its (nonzero) digits is 20480, while the sum is 35.

The spelling of 28801021454 in words is "twenty-eight billion, eight hundred one million, twenty-one thousand, four hundred fifty-four".