28535228435 has 16 divisors (see below), whose sum is σ = 39171384000. Its totient is φ = 19548335616.

The previous prime is 28535228411. The next prime is 28535228509. The reversal of 28535228435 is 53482253582.

It is a cyclic number.

It is not a de Polignac number, because 28535228435 - 2¹⁶ = 28535162899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28535228435.

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, 351890 + ... + 425319.

It is an arithmetic number, because the mean of its divisors is an integer number (2448211500).

Almost surely, 2^28535228435 is an apocalyptic number.

28535228435 is a deficient number, since it is larger than the sum of its proper divisors (10636155565).

28535228435 is a wasteful number, since it uses less digits than its factorization.

28535228435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778270.

The product of its digits is 2304000, while the sum is 47.

The spelling of 28535228435 in words is "twenty-eight billion, five hundred thirty-five million, two hundred twenty-eight thousand, four hundred thirty-five".