15885785854052 has 12 divisors (see below), whose sum is σ = 27842182927356. Its totient is φ = 7930876446240.

The previous prime is 15885785854049. The next prime is 15885785854087. The reversal of 15885785854052 is 25045858758851.

It can be written as a sum of positive squares in 2 ways, for example, as 12553174958116 + 3332610895936 = 3543046^2 + 1825544^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3004117223 + ... + 3004122510.

It is an arithmetic number, because the mean of its divisors is an integer number (2320181910613).

Almost surely, 2^{15885785854052} is an apocalyptic number.

It is an amenable number.

15885785854052 is a deficient number, since it is larger than the sum of its proper divisors (11956397073304).

15885785854052 is a wasteful number, since it uses less digits than its factorization.

15885785854052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008240398 (or 6008240396 counting only the distinct ones).

The product of its (nonzero) digits is 716800000, while the sum is 71.

The spelling of 15885785854052 in words is "fifteen trillion, eight hundred eighty-five billion, seven hundred eighty-five million, eight hundred fifty-four thousand, fifty-two".