28225877604004 has 24 divisors (see below), whose sum is σ = 54104369853240. Its totient is φ = 12824739518976.

The previous prime is 28225877603971. The next prime is 28225877604007. The reversal of 28225877604004 is 40040677852282.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10811614762404 + 17414262841600 = 3288102^2 + 4173040^2 .

It is not an unprimeable number, because it can be changed into a prime (28225877604007) 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, 7156660707 + ... + 7156664650.

It is an arithmetic number, because the mean of its divisors is an integer number (2254348743885).

Almost surely, 2^{28225877604004} is an apocalyptic number.

It is an amenable number.

28225877604004 is a deficient number, since it is larger than the sum of its proper divisors (25878492249236).

28225877604004 is a wasteful number, since it uses less digits than its factorization.

28225877604004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14313325407 (or 14313325405 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 28225877604004 in words is "twenty-eight trillion, two hundred twenty-five billion, eight hundred seventy-seven million, six hundred four thousand, four".