47146138517 has 2 divisors, whose sum is σ = 47146138518. Its totient is φ = 47146138516.

The previous prime is 47146138511. The next prime is 47146138609. The reversal of 47146138517 is 71583164174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42520914436 + 4625224081 = 206206^2 + 68009^2 .

It is a cyclic number.

It is not a de Polignac number, because 47146138517 - 2³² = 42851171221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47146138511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23573069258 + 23573069259.

It is an arithmetic number, because the mean of its divisors is an integer number (23573069259).

Almost surely, 2^47146138517 is an apocalyptic number.

It is an amenable number.

47146138517 is a deficient number, since it is larger than the sum of its proper divisors (1).

47146138517 is an equidigital number, since it uses as much as digits as its factorization.

47146138517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The spelling of 47146138517 in words is "forty-seven billion, one hundred forty-six million, one hundred thirty-eight thousand, five hundred seventeen".