11387732775552 has 1024 divisors, whose sum is σ = 43229721600000. Its totient is φ = 2872707710976.

The previous prime is 11387732775547. The next prime is 11387732775593. The reversal of 11387732775552 is 25557723778311.

11387732775552 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 7 + 7 + 3 + 2 + 7 + 75 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 11387732775552.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 804836574 + ... + 804850722.

It is an arithmetic number, because the mean of its divisors is an integer number (42216525000).

Almost surely, 2^{11387732775552} is an apocalyptic number.

11387732775552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11387732775552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21614860800000).

11387732775552 is an abundant number, since it is smaller than the sum of its proper divisors (31841988824448).

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

11387732775552 is a wasteful number, since it uses less digits than its factorization.

11387732775552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14318 (or 14300 counting only the distinct ones).

The product of its digits is 86436000, while the sum is 63.

The spelling of 11387732775552 in words is "eleven trillion, three hundred eighty-seven billion, seven hundred thirty-two million, seven hundred seventy-five thousand, five hundred fifty-two".