13771542852 has 72 divisors (see below), whose sum is σ = 38130183000. Its totient is φ = 4171496448.

The previous prime is 13771542821. The next prime is 13771542853. The reversal of 13771542852 is 25824517731.

13771542852 is a `hidden beast` number, since 1 + 37 + 71 + 542 + 8 + 5 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1631028996 + 12140513856 = 40386^2 + 110184^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13771542798 and 13771542807.

It is not an unprimeable number, because it can be changed into a prime (13771542853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370227 + ... + 405722.

It is an arithmetic number, because the mean of its divisors is an integer number (529585875).

Almost surely, 2^13771542852 is an apocalyptic number.

13771542852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13771542852 is an abundant number, since it is smaller than the sum of its proper divisors (24358640148).

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

13771542852 is a wasteful number, since it uses less digits than its factorization.

13771542852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776005 (or 776000 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The spelling of 13771542852 in words is "thirteen billion, seven hundred seventy-one million, five hundred forty-two thousand, eight hundred fifty-two".