13506440051 has 8 divisors (see below), whose sum is σ = 14883662640. Its totient is φ = 12177541152.

The previous prime is 13506440033. The next prime is 13506440053. The reversal of 13506440051 is 15004460531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13506440051 - 2¹⁰ = 13506439027 is a prime.

It is a super-3 number, since 3×13506440051³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13506439996 and 13506440023.

It is not an unprimeable number, because it can be changed into a prime (13506440053) 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 7 ways as a sum of consecutive naturals, for example, 12080336 + ... + 12081453.

It is an arithmetic number, because the mean of its divisors is an integer number (1860457830).

Almost surely, 2^13506440051 is an apocalyptic number.

13506440051 is a deficient number, since it is larger than the sum of its proper divisors (1377222589).

13506440051 is a wasteful number, since it uses less digits than its factorization.

13506440051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24161845.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 13506440051 in words is "thirteen billion, five hundred six million, four hundred forty thousand, fifty-one".