47168572411821 has 16 divisors (see below), whose sum is σ = 71876336832128. Its totient is φ = 26953313587200.

The previous prime is 47168572411789. The next prime is 47168572411853. The reversal of 47168572411821 is 12811427586174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47168572411789) and next prime (47168572411853).

It is not a de Polignac number, because 47168572411821 - 2⁵ = 47168572411789 is a prime.

It is a super-2 number, since 2×47168572411821² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47168572413821) 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, 2758600 + ... + 10096881.

It is an arithmetic number, because the mean of its divisors is an integer number (4492271052008).

Almost surely, 2^{47168572411821} is an apocalyptic number.

It is an amenable number.

47168572411821 is a deficient number, since it is larger than the sum of its proper divisors (24707764420307).

47168572411821 is a wasteful number, since it uses less digits than its factorization.

47168572411821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13030212.

The product of its digits is 6021120, while the sum is 57.

Adding to 47168572411821 its reverse (12811427586174), we get a palindrome (59979999997995).

The spelling of 47168572411821 in words is "forty-seven trillion, one hundred sixty-eight billion, five hundred seventy-two million, four hundred eleven thousand, eight hundred twenty-one".