47672189657 has 2 divisors, whose sum is σ = 47672189658. Its totient is φ = 47672189656.

The previous prime is 47672189597. The next prime is 47672189659. The reversal of 47672189657 is 75698127674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46839347776 + 832841881 = 216424^2 + 28859^2 .

It is a cyclic number.

It is not a de Polignac number, because 47672189657 - 2³⁴ = 30492320473 is a prime.

Together with 47672189659, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47672189657.

It is not a weakly prime, because it can be changed into another prime (47672189659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23836094828 + 23836094829.

It is an arithmetic number, because the mean of its divisors is an integer number (23836094829).

Almost surely, 2^47672189657 is an apocalyptic number.

It is an amenable number.

47672189657 is a deficient number, since it is larger than the sum of its proper divisors (1).

47672189657 is an equidigital number, since it uses as much as digits as its factorization.

47672189657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35562240, while the sum is 62.

The spelling of 47672189657 in words is "forty-seven billion, six hundred seventy-two million, one hundred eighty-nine thousand, six hundred fifty-seven".