11506640478347 has 8 divisors (see below), whose sum is σ = 13181831577600. Its totient is φ = 9839295708264.

The previous prime is 11506640478343. The next prime is 11506640478367. The reversal of 11506640478347 is 74387404660511.

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 11506640478347 - 2² = 11506640478343 is a prime.

It is a super-3 number, since 3×11506640478347³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11506640478292 and 11506640478301.

It is not an unprimeable number, because it can be changed into a prime (11506640478341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961579147 + ... + 1961585012.

It is an arithmetic number, because the mean of its divisors is an integer number (1647728947200).

Almost surely, 2^{11506640478347} is an apocalyptic number.

11506640478347 is a deficient number, since it is larger than the sum of its proper divisors (1675191099253).

11506640478347 is an equidigital number, since it uses as much as digits as its factorization.

11506640478347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923164585.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 11506640478347 in words is "eleven trillion, five hundred six billion, six hundred forty million, four hundred seventy-eight thousand, three hundred forty-seven".