1801764001 has 2 divisors, whose sum is σ = 1801764002. Its totient is φ = 1801764000.

The previous prime is 1801763969. The next prime is 1801764011. The reversal of 1801764001 is 1004671081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1797760000 + 4004001 = 42400^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1801764001 - 2⁵ = 1801763969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1801764011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900882000 + 900882001.

It is an arithmetic number, because the mean of its divisors is an integer number (900882001).

Almost surely, 2^1801764001 is an apocalyptic number.

It is an amenable number.

1801764001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801764001 is an equidigital number, since it uses as much as digits as its factorization.

1801764001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1801764001 is about 42447.1907315431. The cubic root of 1801764001 is about 1216.8376401331.

The spelling of 1801764001 in words is "one billion, eight hundred one million, seven hundred sixty-four thousand, one".