1871872463 has 2 divisors, whose sum is σ = 1871872464. Its totient is φ = 1871872462.

The previous prime is 1871872421. The next prime is 1871872487. The reversal of 1871872463 is 3642781781.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1871872463 - 2¹⁸ = 1871610319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1871842463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 935936231 + 935936232.

It is an arithmetic number, because the mean of its divisors is an integer number (935936232).

Almost surely, 2^1871872463 is an apocalyptic number.

1871872463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1871872463 is an equidigital number, since it uses as much as digits as its factorization.

1871872463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 1871872463 is about 43265.1414304865. The cubic root of 1871872463 is about 1232.4200405373.

The spelling of 1871872463 in words is "one billion, eight hundred seventy-one million, eight hundred seventy-two thousand, four hundred sixty-three".