28285211760135 has 32 divisors (see below), whose sum is σ = 49370830698240. Its totient is φ = 13713964492800.

The previous prime is 28285211760119. The next prime is 28285211760137. The reversal of 28285211760135 is 53106711258282.

It is not a de Polignac number, because 28285211760135 - 2⁴ = 28285211760119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285211760137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38005671 + ... + 38742759.

It is an arithmetic number, because the mean of its divisors is an integer number (1542838459320).

Almost surely, 2^{28285211760135} is an apocalyptic number.

28285211760135 is a deficient number, since it is larger than the sum of its proper divisors (21085618938105).

28285211760135 is a wasteful number, since it uses less digits than its factorization.

28285211760135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969679.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 28285211760135 in words is "twenty-eight trillion, two hundred eighty-five billion, two hundred eleven million, seven hundred sixty thousand, one hundred thirty-five".