6887126375550 has 144 divisors (see below), whose sum is σ = 19202746726800. Its totient is φ = 1835224957440.

The previous prime is 6887126375539. The next prime is 6887126375557. The reversal of 6887126375550 is 555736217886.

6887126375550 is a `hidden beast` number, since 6 + 8 + 8 + 7 + 1 + 2 + 6 + 3 + 75 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6887126375557) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16475526 + ... + 16888374.

It is an arithmetic number, because the mean of its divisors is an integer number (133352407825).

Almost surely, 2^{6887126375550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6887126375550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9601373363400).

6887126375550 is an abundant number, since it is smaller than the sum of its proper divisors (12315620351250).

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

6887126375550 is a wasteful number, since it uses less digits than its factorization.

6887126375550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414249 (or 414232 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 63.

The spelling of 6887126375550 in words is "six trillion, eight hundred eighty-seven billion, one hundred twenty-six million, three hundred seventy-five thousand, five hundred fifty".