28315208554 has 16 divisors (see below), whose sum is σ = 43367726592. Its totient is φ = 13860454608.

The previous prime is 28315208543. The next prime is 28315208573. The reversal of 28315208554 is 45580251382.

It is a super-3 number, since 3×28315208554³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28315208554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239394 + ... + 337549.

It is an arithmetic number, because the mean of its divisors is an integer number (2710482912).

Almost surely, 2^28315208554 is an apocalyptic number.

28315208554 is a deficient number, since it is larger than the sum of its proper divisors (15052518038).

28315208554 is a wasteful number, since it uses less digits than its factorization.

28315208554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577461.

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 28315208554 in words is "twenty-eight billion, three hundred fifteen million, two hundred eight thousand, five hundred fifty-four".