28774946541 has 16 divisors (see below), whose sum is σ = 41862024000. Its totient is φ = 17436213120.

The previous prime is 28774946531. The next prime is 28774946569. The reversal of 28774946541 is 14564947782.

It is not a de Polignac number, because 28774946541 - 2⁹ = 28774946029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28774946531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113881 + ... + 265553.

It is an arithmetic number, because the mean of its divisors is an integer number (2616376500).

Almost surely, 2^28774946541 is an apocalyptic number.

It is an amenable number.

28774946541 is a deficient number, since it is larger than the sum of its proper divisors (13087077459).

28774946541 is a wasteful number, since it uses less digits than its factorization.

28774946541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157436.

The product of its digits is 13547520, while the sum is 57.

The spelling of 28774946541 in words is "twenty-eight billion, seven hundred seventy-four million, nine hundred forty-six thousand, five hundred forty-one".