47320271691 has 64 divisors (see below), whose sum is σ = 82682781696. Its totient is φ = 23341190400.

The previous prime is 47320271671. The next prime is 47320271711. The reversal of 47320271691 is 19617202374.

It is an interprime number because it is at equal distance from previous prime (47320271671) and next prime (47320271711).

It is not a de Polignac number, because 47320271691 - 2⁹ = 47320271179 is a prime.

It is a super-2 number, since 2×47320271691² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47320271611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 695376 + ... + 760386.

It is an arithmetic number, because the mean of its divisors is an integer number (1291918464).

Almost surely, 2^47320271691 is an apocalyptic number.

47320271691 is a deficient number, since it is larger than the sum of its proper divisors (35362510005).

47320271691 is a wasteful number, since it uses less digits than its factorization.

47320271691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65192.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 47320271691 in words is "forty-seven billion, three hundred twenty million, two hundred seventy-one thousand, six hundred ninety-one".