11774137088887 has 24 divisors (see below), whose sum is σ = 12478485183840. Its totient is φ = 11104923822720.

The previous prime is 11774137088873. The next prime is 11774137088891. The reversal of 11774137088887 is 78888073147711.

It is not a de Polignac number, because 11774137088887 - 2¹⁵ = 11774137056119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11774137082887) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9630462 + ... + 10783972.

It is an arithmetic number, because the mean of its divisors is an integer number (519936882660).

Almost surely, 2^{11774137088887} is an apocalyptic number.

11774137088887 is a deficient number, since it is larger than the sum of its proper divisors (704348094953).

11774137088887 is a wasteful number, since it uses less digits than its factorization.

11774137088887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153851 (or 1153822 counting only the distinct ones).

The product of its (nonzero) digits is 118013952, while the sum is 70.

The spelling of 11774137088887 in words is "eleven trillion, seven hundred seventy-four billion, one hundred thirty-seven million, eighty-eight thousand, eight hundred eighty-seven".