1405617272047 has 4 divisors (see below), whose sum is σ = 1406367736960. Its totient is φ = 1404866807136.

The previous prime is 1405617272029. The next prime is 1405617272077. The reversal of 1405617272047 is 7402727165041.

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

It is a cyclic number.

It is not a de Polignac number, because 1405617272047 - 2²³ = 1405608883439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1405617271988 and 1405617272006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405617272077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375229647 + ... + 375233392.

It is an arithmetic number, because the mean of its divisors is an integer number (351591934240).

Almost surely, 2^{1405617272047} is an apocalyptic number.

1405617272047 is a deficient number, since it is larger than the sum of its proper divisors (750464913).

1405617272047 is an equidigital number, since it uses as much as digits as its factorization.

1405617272047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750464912.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 1405617272047 in words is "one trillion, four hundred five billion, six hundred seventeen million, two hundred seventy-two thousand, forty-seven".