11903747870784 has 672 divisors, whose sum is σ = 40228184411136. Its totient is φ = 3080827975680.

The previous prime is 11903747870783. The next prime is 11903747870809. The reversal of 11903747870784 is 48707874730911.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×11903747870784² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (11903747870783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15724897734 + ... + 15724898490.

Almost surely, 2^{11903747870784} is an apocalyptic number.

11903747870784 is a gapful number since it is divisible by the number (14) 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 11903747870784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20114092205568).

11903747870784 is an abundant number, since it is smaller than the sum of its proper divisors (28324436540352).

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

11903747870784 is an frugal number, since it uses more digits than its factorization.

11903747870784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 66.

The spelling of 11903747870784 in words is "eleven trillion, nine hundred three billion, seven hundred forty-seven million, eight hundred seventy thousand, seven hundred eighty-four".