47091631801 has 2 divisors, whose sum is σ = 47091631802. Its totient is φ = 47091631800.

The previous prime is 47091631793. The next prime is 47091631837. The reversal of 47091631801 is 10813619074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30589660201 + 16501971600 = 174899^2 + 128460^2 .

It is a cyclic number.

It is not a de Polignac number, because 47091631801 - 2³ = 47091631793 is a prime.

It is not a weakly prime, because it can be changed into another prime (47091631901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23545815900 + 23545815901.

It is an arithmetic number, because the mean of its divisors is an integer number (23545815901).

Almost surely, 2^47091631801 is an apocalyptic number.

It is an amenable number.

47091631801 is a deficient number, since it is larger than the sum of its proper divisors (1).

47091631801 is an equidigital number, since it uses as much as digits as its factorization.

47091631801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 47091631801 in words is "forty-seven billion, ninety-one million, six hundred thirty-one thousand, eight hundred one".