47507931811 has 2 divisors, whose sum is σ = 47507931812. Its totient is φ = 47507931810.

The previous prime is 47507931769. The next prime is 47507931833. The reversal of 47507931811 is 11813970574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47507931811 is a prime.

It is not a weakly prime, because it can be changed into another prime (47507931011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23753965905 + 23753965906.

It is an arithmetic number, because the mean of its divisors is an integer number (23753965906).

Almost surely, 2^47507931811 is an apocalyptic number.

47507931811 is a deficient number, since it is larger than the sum of its proper divisors (1).

47507931811 is an equidigital number, since it uses as much as digits as its factorization.

47507931811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 47507931811 in words is "forty-seven billion, five hundred seven million, nine hundred thirty-one thousand, eight hundred eleven".