1862438840791 has 2 divisors, whose sum is σ = 1862438840792. Its totient is φ = 1862438840790.

The previous prime is 1862438840761. The next prime is 1862438840803. The reversal of 1862438840791 is 1970488342681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1862438840791 - 2¹⁵ = 1862438808023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1862438840761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931219420395 + 931219420396.

It is an arithmetic number, because the mean of its divisors is an integer number (931219420396).

Almost surely, 2^{1862438840791} is an apocalyptic number.

1862438840791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1862438840791 is an equidigital number, since it uses as much as digits as its factorization.

1862438840791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 1862438840791 in words is "one trillion, eight hundred sixty-two billion, four hundred thirty-eight million, eight hundred forty thousand, seven hundred ninety-one".