47711218431 has 32 divisors (see below), whose sum is σ = 64810368000. Its totient is φ = 31215607808.

The previous prime is 47711218363. The next prime is 47711218463. The reversal of 47711218431 is 13481211774.

It is a cyclic number.

It is not a de Polignac number, because 47711218431 - 2¹¹ = 47711216383 is a prime.

It is a super-2 number, since 2×47711218431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47711218431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47711218481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33861055 + ... + 33862463.

It is an arithmetic number, because the mean of its divisors is an integer number (2025324000).

Almost surely, 2^47711218431 is an apocalyptic number.

47711218431 is a deficient number, since it is larger than the sum of its proper divisors (17099149569).

47711218431 is a wasteful number, since it uses less digits than its factorization.

47711218431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its digits is 37632, while the sum is 39.

The spelling of 47711218431 in words is "forty-seven billion, seven hundred eleven million, two hundred eighteen thousand, four hundred thirty-one".