11481701609 has 12 divisors (see below), whose sum is σ = 13444725888. Its totient is φ = 9776277000.

The previous prime is 11481701599. The next prime is 11481701633. The reversal of 11481701609 is 90610718411.

It is not a de Polignac number, because 11481701609 - 2¹⁶ = 11481636073 is a prime.

It is a super-2 number, since 2×11481701609² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11481701809) 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 11 ways as a sum of consecutive naturals, for example, 768497 + ... + 783294.

It is an arithmetic number, because the mean of its divisors is an integer number (1120393824).

Almost surely, 2^11481701609 is an apocalyptic number.

It is an amenable number.

11481701609 is a deficient number, since it is larger than the sum of its proper divisors (1963024279).

11481701609 is a wasteful number, since it uses less digits than its factorization.

11481701609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551956 (or 1551949 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 38.

The spelling of 11481701609 in words is "eleven billion, four hundred eighty-one million, seven hundred one thousand, six hundred nine".