28825771945570 has 16 divisors (see below), whose sum is σ = 51913259754048. Its totient is φ = 11524337611120.

The previous prime is 28825771945519. The next prime is 28825771945573. The reversal of 28825771945570 is 7554917752882.

It is a self number, because there is not a number n which added to its sum of digits gives 28825771945570.

It is not an unprimeable number, because it can be changed into a prime (28825771945573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746375614 + ... + 746414233.

It is an arithmetic number, because the mean of its divisors is an integer number (3244578734628).

Almost surely, 2^{28825771945570} is an apocalyptic number.

28825771945570 is a deficient number, since it is larger than the sum of its proper divisors (23087487808478).

28825771945570 is a wasteful number, since it uses less digits than its factorization.

28825771945570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492791785.

The product of its (nonzero) digits is 395136000, while the sum is 70.

The spelling of 28825771945570 in words is "twenty-eight trillion, eight hundred twenty-five billion, seven hundred seventy-one million, nine hundred forty-five thousand, five hundred seventy".