28877614890 has 32 divisors (see below), whose sum is σ = 70020780480. Its totient is φ = 7621307904.

The previous prime is 28877614889. The next prime is 28877614907. The reversal of 28877614890 is 9841677882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4958880 + ... + 4964699.

It is an arithmetic number, because the mean of its divisors is an integer number (2188149390).

Almost surely, 2^28877614890 is an apocalyptic number.

28877614890 is an abundant number, since it is smaller than the sum of its proper divisors (41143165590).

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

28877614890 is a wasteful number, since it uses less digits than its factorization.

28877614890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9923686.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 28877614890 in words is "twenty-eight billion, eight hundred seventy-seven million, six hundred fourteen thousand, eight hundred ninety".