13640887848 has 64 divisors (see below), whose sum is σ = 38983512960. Its totient is φ = 3896441856.

The previous prime is 13640887837. The next prime is 13640887853. The reversal of 13640887848 is 84878804631.

It is a happy number.

13640887848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13640887848² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956740 + ... + 970892.

It is an arithmetic number, because the mean of its divisors is an integer number (609117390).

Almost surely, 2^13640887848 is an apocalyptic number.

It is an amenable number.

13640887848 is an abundant number, since it is smaller than the sum of its proper divisors (25342625112).

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

13640887848 is a wasteful number, since it uses less digits than its factorization.

13640887848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19906 (or 19902 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 57.

The spelling of 13640887848 in words is "thirteen billion, six hundred forty million, eight hundred eighty-seven thousand, eight hundred forty-eight".