1851028801 has 2 divisors, whose sum is σ = 1851028802. Its totient is φ = 1851028800.

The previous prime is 1851028747. The next prime is 1851028841. The reversal of 1851028801 is 1088201581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1638306576 + 212722225 = 40476^2 + 14585^2 .

It is a cyclic number.

It is not a de Polignac number, because 1851028801 - 2¹³ = 1851020609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1851028841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925514400 + 925514401.

It is an arithmetic number, because the mean of its divisors is an integer number (925514401).

Almost surely, 2^1851028801 is an apocalyptic number.

It is an amenable number.

1851028801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1851028801 is an equidigital number, since it uses as much as digits as its factorization.

1851028801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 34.

The square root of 1851028801 is about 43023.5842416691. The cubic root of 1851028801 is about 1227.8285438718.

The spelling of 1851028801 in words is "one billion, eight hundred fifty-one million, twenty-eight thousand, eight hundred one".