11438550912 has 64 divisors (see below), whose sum is σ = 32170942800. Its totient is φ = 3588562944.

The previous prime is 11438550911. The next prime is 11438550913. The reversal of 11438550912 is 21905583411.

It is an interprime number because it is at equal distance from previous prime (11438550911) and next prime (11438550913).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438550911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869587 + ... + 882642.

Almost surely, 2^11438550912 is an apocalyptic number.

11438550912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11438550912 is an abundant number, since it is smaller than the sum of its proper divisors (20732391888).

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

11438550912 is a wasteful number, since it uses less digits than its factorization.

11438550912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752263 (or 1752251 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 11438550912 in words is "eleven billion, four hundred thirty-eight million, five hundred fifty thousand, nine hundred twelve".