11004891543840 has 96 divisors (see below), whose sum is σ = 34685553563136. Its totient is φ = 2932932331520.

The previous prime is 11004891543787. The next prime is 11004891543847. The reversal of 11004891543840 is 4834519840011.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-4 number, since 4×11004891543840⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11004891543840.

It is not an unprimeable number, because it can be changed into a prime (11004891543847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5834832 + ... + 7486991.

It is an arithmetic number, because the mean of its divisors is an integer number (361307849616).

Almost surely, 2^{11004891543840} is an apocalyptic number.

11004891543840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11004891543840 is an abundant number, since it is smaller than the sum of its proper divisors (23680662019296).

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

11004891543840 is a wasteful number, since it uses less digits than its factorization.

11004891543840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13323562 (or 13323554 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 11004891543840 in words is "eleven trillion, four billion, eight hundred ninety-one million, five hundred forty-three thousand, eight hundred forty".