28351265660502 has 16 divisors (see below), whose sum is σ = 56719930111680. Its totient is φ = 9447522088392.

The previous prime is 28351265660489. The next prime is 28351265660507. The reversal of 28351265660502 is 20506656215382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28351265660507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724928428 + ... + 724967535.

It is an arithmetic number, because the mean of its divisors is an integer number (3544995631980).

Almost surely, 2^{28351265660502} is an apocalyptic number.

28351265660502 is an abundant number, since it is smaller than the sum of its proper divisors (28368664451178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28351265660502 is a wasteful number, since it uses less digits than its factorization.

28351265660502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449899227.

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 28351265660502 in words is "twenty-eight trillion, three hundred fifty-one billion, two hundred sixty-five million, six hundred sixty thousand, five hundred two".