1868898001 has 2 divisors, whose sum is σ = 1868898002. Its totient is φ = 1868898000.

The previous prime is 1868897981. The next prime is 1868898019. The reversal of 1868898001 is 1008988681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1853216401 + 15681600 = 43049^2 + 3960^2 .

It is an emirp because it is prime and its reverse (1008988681) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1008688981 and 1898868001.

It is a cyclic number.

It is not a de Polignac number, because 1868898001 - 2¹⁷ = 1868766929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1868892001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934449000 + 934449001.

It is an arithmetic number, because the mean of its divisors is an integer number (934449001).

Almost surely, 2^1868898001 is an apocalyptic number.

It is an amenable number.

1868898001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868898001 is an equidigital number, since it uses as much as digits as its factorization.

1868898001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 49.

The square root of 1868898001 is about 43230.7529543495. The cubic root of 1868898001 is about 1231.7669102184.

The spelling of 1868898001 in words is "one billion, eight hundred sixty-eight million, eight hundred ninety-eight thousand, one".