47800020001 has 2 divisors, whose sum is σ = 47800020002. Its totient is φ = 47800020000.

The previous prime is 47800019989. The next prime is 47800020017. The reversal of 47800020001 is 10002000874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38976235776 + 8823784225 = 197424^2 + 93935^2 .

It is a cyclic number.

It is not a de Polignac number, because 47800020001 - 2⁹ = 47800019489 is a prime.

It is not a weakly prime, because it can be changed into another prime (47800020071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23900010000 + 23900010001.

It is an arithmetic number, because the mean of its divisors is an integer number (23900010001).

Almost surely, 2^47800020001 is an apocalyptic number.

It is an amenable number.

47800020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

47800020001 is an equidigital number, since it uses as much as digits as its factorization.

47800020001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 47800020001 its reverse (10002000874), we get a palindrome (57802020875).

The spelling of 47800020001 in words is "forty-seven billion, eight hundred million, twenty thousand, one".