11452551309 has 16 divisors (see below), whose sum is σ = 17514058240. Its totient is φ = 7388742240.

The previous prime is 11452551293. The next prime is 11452551311. The reversal of 11452551309 is 90315525411.

It is a happy number.

11452551309 is a `hidden beast` number, since 114 + 5 + 25 + 513 + 0 + 9 = 666.

It is not a de Polignac number, because 11452551309 - 2⁴ = 11452551293 is a prime.

It is a super-2 number, since 2×11452551309² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452551379) 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, 6840592 + ... + 6842265.

It is an arithmetic number, because the mean of its divisors is an integer number (1094628640).

Almost surely, 2^11452551309 is an apocalyptic number.

It is an amenable number.

11452551309 is a deficient number, since it is larger than the sum of its proper divisors (6061506931).

11452551309 is a wasteful number, since it uses less digits than its factorization.

11452551309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13682897 (or 13682891 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 11452551309 in words is "eleven billion, four hundred fifty-two million, five hundred fifty-one thousand, three hundred nine".