13558720047 has 16 divisors (see below), whose sum is σ = 18111295488. Its totient is φ = 9022665600.

The previous prime is 13558720037. The next prime is 13558720061. The reversal of 13558720047 is 74002785531.

It is not a de Polignac number, because 13558720047 - 2⁸ = 13558719791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13558719990 and 13558720008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13558720037) 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, 7238103 + ... + 7239975.

It is an arithmetic number, because the mean of its divisors is an integer number (1131955968).

Almost surely, 2^13558720047 is an apocalyptic number.

13558720047 is a deficient number, since it is larger than the sum of its proper divisors (4552575441).

13558720047 is a wasteful number, since it uses less digits than its factorization.

13558720047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 13558720047 in words is "thirteen billion, five hundred fifty-eight million, seven hundred twenty thousand, forty-seven".