28949239029 has 16 divisors (see below), whose sum is σ = 39620214144. Its totient is φ = 18795144000.

The previous prime is 28949238973. The next prime is 28949239057. The reversal of 28949239029 is 92093294982.

It is not a de Polignac number, because 28949239029 - 2¹³ = 28949230837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28949239029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28949239829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 764649 + ... + 801614.

It is an arithmetic number, because the mean of its divisors is an integer number (2476263384).

Almost surely, 2^28949239029 is an apocalyptic number.

It is an amenable number.

28949239029 is a deficient number, since it is larger than the sum of its proper divisors (10670975115).

28949239029 is a wasteful number, since it uses less digits than its factorization.

28949239029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566428.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 28949239029 in words is "twenty-eight billion, nine hundred forty-nine million, two hundred thirty-nine thousand, twenty-nine".