5209887166140 has 48 divisors (see below), whose sum is σ = 14589940165920. Its totient is φ = 1389088377600.

The previous prime is 5209887166117. The next prime is 5209887166157. The reversal of 5209887166140 is 416617889025.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6323211 + ... + 7099490.

It is an arithmetic number, because the mean of its divisors is an integer number (303957086790).

Almost surely, 2^{5209887166140} is an apocalyptic number.

It is an amenable number.

5209887166140 is an abundant number, since it is smaller than the sum of its proper divisors (9380052999780).

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

5209887166140 is a wasteful number, since it uses less digits than its factorization.

5209887166140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13429182 (or 13429180 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 5209887166140 in words is "five trillion, two hundred nine billion, eight hundred eighty-seven million, one hundred sixty-six thousand, one hundred forty".