28949379408200 has 48 divisors (see below), whose sum is σ = 70849796982000. Its totient is φ = 10970291142720.

The previous prime is 28949379408127. The next prime is 28949379408203. The reversal of 28949379408200 is 280497394982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28949379408203) 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, 3809125070 + ... + 3809132669.

It is an arithmetic number, because the mean of its divisors is an integer number (1476037437125).

Almost surely, 2^{28949379408200} is an apocalyptic number.

28949379408200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28949379408200 is an abundant number, since it is smaller than the sum of its proper divisors (41900417573800).

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

28949379408200 is a wasteful number, since it uses less digits than its factorization.

28949379408200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618257774 (or 7618257765 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 28949379408200 in words is "twenty-eight trillion, nine hundred forty-nine billion, three hundred seventy-nine million, four hundred eight thousand, two hundred".