1850728004971 has 2 divisors, whose sum is σ = 1850728004972. Its totient is φ = 1850728004970.

The previous prime is 1850728004969. The next prime is 1850728005011. The reversal of 1850728004971 is 1794008270581.

It is a weak prime.

It is an emirp because it is prime and its reverse (1794008270581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1850728004971 - 2¹ = 1850728004969 is a prime.

Together with 1850728004969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1850128004971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925364002485 + 925364002486.

It is an arithmetic number, because the mean of its divisors is an integer number (925364002486).

Almost surely, 2^{1850728004971} is an apocalyptic number.

1850728004971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850728004971 is an equidigital number, since it uses as much as digits as its factorization.

1850728004971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 1850728004971 in words is "one trillion, eight hundred fifty billion, seven hundred twenty-eight million, four thousand, nine hundred seventy-one".