11484921905551 has 4 divisors (see below), whose sum is σ = 12160505547072. Its totient is φ = 10809338264032.

The previous prime is 11484921905533. The next prime is 11484921905573. The reversal of 11484921905551 is 15550912948411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11484921905551 - 2⁷ = 11484921905423 is a prime.

It is a super-2 number, since 2×11484921905551² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11484921905492 and 11484921905501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11484921905581) 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 3 ways as a sum of consecutive naturals, for example, 337791820735 + ... + 337791820768.

It is an arithmetic number, because the mean of its divisors is an integer number (3040126386768).

Almost surely, 2^{11484921905551} is an apocalyptic number.

11484921905551 is a deficient number, since it is larger than the sum of its proper divisors (675583641521).

11484921905551 is an equidigital number, since it uses as much as digits as its factorization.

11484921905551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675583641520.

The product of its (nonzero) digits is 2592000, while the sum is 55.

The spelling of 11484921905551 in words is "eleven trillion, four hundred eighty-four billion, nine hundred twenty-one million, nine hundred five thousand, five hundred fifty-one".