28529771941 has 8 divisors (see below), whose sum is σ = 32476578624. Its totient is φ = 24808497120.

The previous prime is 28529771939. The next prime is 28529771951. The reversal of 28529771941 is 14917792582.

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

It is not a de Polignac number, because 28529771941 - 2¹ = 28529771939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529771951) 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, 56382696 + ... + 56383201.

It is an arithmetic number, because the mean of its divisors is an integer number (4059572328).

Almost surely, 2^28529771941 is an apocalyptic number.

It is an amenable number.

28529771941 is a deficient number, since it is larger than the sum of its proper divisors (3946806683).

28529771941 is a wasteful number, since it uses less digits than its factorization.

28529771941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112765931.

The product of its digits is 2540160, while the sum is 55.

The spelling of 28529771941 in words is "twenty-eight billion, five hundred twenty-nine million, seven hundred seventy-one thousand, nine hundred forty-one".