42847438636213 has 4 divisors (see below), whose sum is σ = 43131196508128. Its totient is φ = 42563680764300.

The previous prime is 42847438636193. The next prime is 42847438636279. The reversal of 42847438636213 is 31263683474824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42847438636213 - 2¹³ = 42847438628021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847433636213) 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, 141878935731 + ... + 141878936032.

It is an arithmetic number, because the mean of its divisors is an integer number (10782799127032).

Almost surely, 2^{42847438636213} is an apocalyptic number.

It is an amenable number.

42847438636213 is a deficient number, since it is larger than the sum of its proper divisors (283757871915).

42847438636213 is a wasteful number, since it uses less digits than its factorization.

42847438636213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283757871914.

The product of its digits is 111476736, while the sum is 61.

The spelling of 42847438636213 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred thirty-eight million, six hundred thirty-six thousand, two hundred thirteen".