213472645250547 has 4 divisors (see below), whose sum is σ = 284630193667400. Its totient is φ = 142315096833696.

The previous prime is 213472645250531. The next prime is 213472645250561. The reversal of 213472645250547 is 745052546274312.

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

It is not a de Polignac number, because 213472645250547 - 2⁴ = 213472645250531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213472645250587) 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, 35578774208422 + ... + 35578774208427.

It is an arithmetic number, because the mean of its divisors is an integer number (71157548416850).

Almost surely, 2^{213472645250547} is an apocalyptic number.

213472645250547 is a deficient number, since it is larger than the sum of its proper divisors (71157548416853).

213472645250547 is an equidigital number, since it uses as much as digits as its factorization.

213472645250547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71157548416852.

The product of its (nonzero) digits is 56448000, while the sum is 57.

The spelling of 213472645250547 in words is "two hundred thirteen trillion, four hundred seventy-two billion, six hundred forty-five million, two hundred fifty thousand, five hundred forty-seven".