47177520617 has 2 divisors, whose sum is σ = 47177520618. Its totient is φ = 47177520616.

The previous prime is 47177520613. The next prime is 47177520703. The reversal of 47177520617 is 71602577174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27023743321 + 20153777296 = 164389^2 + 141964^2 .

It is a cyclic number.

It is not a de Polignac number, because 47177520617 - 2² = 47177520613 is a prime.

It is not a weakly prime, because it can be changed into another prime (47177520613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23588760308 + 23588760309.

It is an arithmetic number, because the mean of its divisors is an integer number (23588760309).

Almost surely, 2^47177520617 is an apocalyptic number.

It is an amenable number.

47177520617 is a deficient number, since it is larger than the sum of its proper divisors (1).

47177520617 is an equidigital number, since it uses as much as digits as its factorization.

47177520617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576240, while the sum is 47.

The spelling of 47177520617 in words is "forty-seven billion, one hundred seventy-seven million, five hundred twenty thousand, six hundred seventeen".