1897827632863 has 2 divisors, whose sum is σ = 1897827632864. Its totient is φ = 1897827632862.

The previous prime is 1897827632797. The next prime is 1897827632881. The reversal of 1897827632863 is 3682367287981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1897827632863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1897827632792 and 1897827632801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1897827632893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948913816431 + 948913816432.

It is an arithmetic number, because the mean of its divisors is an integer number (948913816432).

Almost surely, 2^{1897827632863} is an apocalyptic number.

1897827632863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1897827632863 is an equidigital number, since it uses as much as digits as its factorization.

1897827632863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 292626432, while the sum is 70.

The spelling of 1897827632863 in words is "one trillion, eight hundred ninety-seven billion, eight hundred twenty-seven million, six hundred thirty-two thousand, eight hundred sixty-three".