28319569853655 has 64 divisors (see below), whose sum is σ = 48081381857280. Its totient is φ = 14184303888384.

The previous prime is 28319569853537. The next prime is 28319569853677. The reversal of 28319569853655 is 55635896591382.

It is not a de Polignac number, because 28319569853655 - 2⁹ = 28319569853143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 670629652 + ... + 670671878.

It is an arithmetic number, because the mean of its divisors is an integer number (751271591520).

Almost surely, 2^{28319569853655} is an apocalyptic number.

28319569853655 is a deficient number, since it is larger than the sum of its proper divisors (19761812003625).

28319569853655 is a wasteful number, since it uses less digits than its factorization.

28319569853655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47928.

The product of its digits is 2099520000, while the sum is 75.

The spelling of 28319569853655 in words is "twenty-eight trillion, three hundred nineteen billion, five hundred sixty-nine million, eight hundred fifty-three thousand, six hundred fifty-five".