41647641877 has 2 divisors, whose sum is σ = 41647641878. Its totient is φ = 41647641876.

The previous prime is 41647641821. The next prime is 41647641881. The reversal of 41647641877 is 77814674614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40838751396 + 808890481 = 202086^2 + 28441^2 .

It is a cyclic number.

It is not a de Polignac number, because 41647641877 - 2¹¹ = 41647639829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41647641887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20823820938 + 20823820939.

It is an arithmetic number, because the mean of its divisors is an integer number (20823820939).

Almost surely, 2^41647641877 is an apocalyptic number.

It is an amenable number.

41647641877 is a deficient number, since it is larger than the sum of its proper divisors (1).

41647641877 is an equidigital number, since it uses as much as digits as its factorization.

41647641877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 55.

The spelling of 41647641877 in words is "forty-one billion, six hundred forty-seven million, six hundred forty-one thousand, eight hundred seventy-seven".