47212388654349 has 4 divisors (see below), whose sum is σ = 62949851539136. Its totient is φ = 31474925769564.

The previous prime is 47212388654339. The next prime is 47212388654357. The reversal of 47212388654349 is 94345688321274.

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 not a de Polignac number, because 47212388654349 - 2¹¹ = 47212388652301 is a prime.

It is a super-2 number, since 2×47212388654349² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47212388654349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47212388654309) 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, 7868731442389 + ... + 7868731442394.

It is an arithmetic number, because the mean of its divisors is an integer number (15737462884784).

Almost surely, 2^{47212388654349} is an apocalyptic number.

It is an amenable number.

47212388654349 is a deficient number, since it is larger than the sum of its proper divisors (15737462884787).

47212388654349 is a wasteful number, since it uses less digits than its factorization.

47212388654349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15737462884786.

The product of its digits is 278691840, while the sum is 66.

The spelling of 47212388654349 in words is "forty-seven trillion, two hundred twelve billion, three hundred eighty-eight million, six hundred fifty-four thousand, three hundred forty-nine".