28390969041 has 16 divisors (see below), whose sum is σ = 39081308160. Its totient is φ = 18314145360.

The previous prime is 28390969031. The next prime is 28390969049. The reversal of 28390969041 is 14096909382.

It is not a de Polignac number, because 28390969041 - 2¹³ = 28390960849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28390969049) 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, 801340 + ... + 836018.

It is an arithmetic number, because the mean of its divisors is an integer number (2442581760).

Almost surely, 2^28390969041 is an apocalyptic number.

It is an amenable number.

28390969041 is a deficient number, since it is larger than the sum of its proper divisors (10690339119).

28390969041 is a wasteful number, since it uses less digits than its factorization.

28390969041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43516.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 28390969041 in words is "twenty-eight billion, three hundred ninety million, nine hundred sixty-nine thousand, forty-one".