47646535877 has 2 divisors, whose sum is σ = 47646535878. Its totient is φ = 47646535876.

The previous prime is 47646535861. The next prime is 47646535889. The reversal of 47646535877 is 77853564674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47071207681 + 575328196 = 216959^2 + 23986^2 .

It is a cyclic number.

It is not a de Polignac number, because 47646535877 - 2⁴ = 47646535861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47646535177) 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 as a sum of consecutive naturals, namely, 23823267938 + 23823267939.

It is an arithmetic number, because the mean of its divisors is an integer number (23823267939).

Almost surely, 2^47646535877 is an apocalyptic number.

It is an amenable number.

47646535877 is a deficient number, since it is larger than the sum of its proper divisors (1).

47646535877 is an equidigital number, since it uses as much as digits as its factorization.

47646535877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118540800, while the sum is 62.

The spelling of 47646535877 in words is "forty-seven billion, six hundred forty-six million, five hundred thirty-five thousand, eight hundred seventy-seven".