1863142973441 has 8 divisors (see below), whose sum is σ = 1927405682280. Its totient is φ = 1798881357952.

The previous prime is 1863142973431. The next prime is 1863142973453. The reversal of 1863142973441 is 1443792413681.

It can be written as a sum of positive squares in 4 ways, for example, as 1337945636416 + 525197337025 = 1156696^2 + 724705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1863142973441 - 2²⁶ = 1863075864577 is a prime.

It is a super-3 number, since 3×1863142973441³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1863142973401) 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 in 7 ways as a sum of consecutive naturals, for example, 4772741 + ... + 5148333.

It is an arithmetic number, because the mean of its divisors is an integer number (240925710285).

Almost surely, 2^{1863142973441} is an apocalyptic number.

It is an amenable number.

1863142973441 is a deficient number, since it is larger than the sum of its proper divisors (64262708839).

1863142973441 is a wasteful number, since it uses less digits than its factorization.

1863142973441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546675.

The product of its digits is 3483648, while the sum is 53.

The spelling of 1863142973441 in words is "one trillion, eight hundred sixty-three billion, one hundred forty-two million, nine hundred seventy-three thousand, four hundred forty-one".