28158477470 has 64 divisors (see below), whose sum is σ = 54564192000. Its totient is φ = 10430378496.

The previous prime is 28158477469. The next prime is 28158477497. The reversal of 28158477470 is 7477485182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1999574 + ... + 2013606.

It is an arithmetic number, because the mean of its divisors is an integer number (852565500).

Almost surely, 2^28158477470 is an apocalyptic number.

28158477470 is a deficient number, since it is larger than the sum of its proper divisors (26405714530).

28158477470 is a wasteful number, since it uses less digits than its factorization.

28158477470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297.

The product of its (nonzero) digits is 3512320, while the sum is 53.

The spelling of 28158477470 in words is "twenty-eight billion, one hundred fifty-eight million, four hundred seventy-seven thousand, four hundred seventy".