1863142973431 has 2 divisors, whose sum is σ = 1863142973432. Its totient is φ = 1863142973430.

The previous prime is 1863142973423. The next prime is 1863142973453. The reversal of 1863142973431 is 1343792413681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1863142973431 - 2³ = 1863142973423 is a prime.

It is a super-3 number, since 3×1863142973431³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1863142973401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931571486715 + 931571486716.

It is an arithmetic number, because the mean of its divisors is an integer number (931571486716).

Almost surely, 2^{1863142973431} is an apocalyptic number.

1863142973431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1863142973431 is an equidigital number, since it uses as much as digits as its factorization.

1863142973431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The spelling of 1863142973431 in words is "one trillion, eight hundred sixty-three billion, one hundred forty-two million, nine hundred seventy-three thousand, four hundred thirty-one".