15853815545053 has 8 divisors (see below), whose sum is σ = 16419072477600. Its totient is φ = 15289796855088.

The previous prime is 15853815544961. The next prime is 15853815545059. The reversal of 15853815545053 is 35054551835851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15853815545053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15853815545059) 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, 309534583 + ... + 309585796.

It is an arithmetic number, because the mean of its divisors is an integer number (2052384059700).

Almost surely, 2^{15853815545053} is an apocalyptic number.

It is an amenable number.

15853815545053 is a deficient number, since it is larger than the sum of its proper divisors (565256932547).

15853815545053 is an equidigital number, since it uses as much as digits as its factorization.

15853815545053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619121291.

The product of its (nonzero) digits is 36000000, while the sum is 58.

The spelling of 15853815545053 in words is "fifteen trillion, eight hundred fifty-three billion, eight hundred fifteen million, five hundred forty-five thousand, fifty-three".