47120161731 has 8 divisors (see below), whose sum is σ = 63891744960. Its totient is φ = 30881009832.

The previous prime is 47120161681. The next prime is 47120161741. The reversal of 47120161731 is 13716102174.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47120161731 - 2²¹ = 47118064579 is a prime.

It is a super-2 number, since 2×47120161731² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47120161692 and 47120161701.

It is not an unprimeable number, because it can be changed into a prime (47120161741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133107625 + ... + 133107978.

It is an arithmetic number, because the mean of its divisors is an integer number (7986468120).

Almost surely, 2^47120161731 is an apocalyptic number.

47120161731 is a deficient number, since it is larger than the sum of its proper divisors (16771583229).

47120161731 is a wasteful number, since it uses less digits than its factorization.

47120161731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266215665.

The product of its (nonzero) digits is 7056, while the sum is 33.

The spelling of 47120161731 in words is "forty-seven billion, one hundred twenty million, one hundred sixty-one thousand, seven hundred thirty-one".