1863040362091 has 2 divisors, whose sum is σ = 1863040362092. Its totient is φ = 1863040362090.

The previous prime is 1863040362077. The next prime is 1863040362133. The reversal of 1863040362091 is 1902630403681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1863040362091 - 2³¹ = 1860892878443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1863040362041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931520181045 + 931520181046.

It is an arithmetic number, because the mean of its divisors is an integer number (931520181046).

Almost surely, 2^{1863040362091} is an apocalyptic number.

1863040362091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1863040362091 is an equidigital number, since it uses as much as digits as its factorization.

1863040362091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 1863040362091 in words is "one trillion, eight hundred sixty-three billion, forty million, three hundred sixty-two thousand, ninety-one".