28949952006 has 24 divisors (see below), whose sum is σ = 63218797824. Its totient is φ = 9573999120.

The previous prime is 28949951963. The next prime is 28949952007. The reversal of 28949952006 is 60025994982.

It is a happy number.

28949952006 is a `hidden beast` number, since 28 + 9 + 4 + 99 + 520 + 0 + 6 = 666.

It is a super-2 number, since 2×28949952006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28949952007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6329725 + ... + 6334296.

It is an arithmetic number, because the mean of its divisors is an integer number (2634116576).

Almost surely, 2^28949952006 is an apocalyptic number.

28949952006 is an abundant number, since it is smaller than the sum of its proper divisors (34268845818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28949952006 is a wasteful number, since it uses less digits than its factorization.

28949952006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664156 (or 12664153 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 28949952006 in words is "twenty-eight billion, nine hundred forty-nine million, nine hundred fifty-two thousand, six".