1842860881405 has 8 divisors (see below), whose sum is σ = 2287689370200. Its totient is φ = 1423451163456.

The previous prime is 1842860881397. The next prime is 1842860881469. The reversal of 1842860881405 is 5041880682481.

It can be written as a sum of positive squares in 4 ways, for example, as 800262641476 + 1042598239929 = 894574^2 + 1021077^2 .

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 1842860881405 - 2³ = 1842860881397 is a prime.

It is a super-2 number, since 2×1842860881405² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354692550 + ... + 6354692839.

It is an arithmetic number, because the mean of its divisors is an integer number (285961171275).

Almost surely, 2^{1842860881405} is an apocalyptic number.

It is an amenable number.

1842860881405 is a deficient number, since it is larger than the sum of its proper divisors (444828488795).

1842860881405 is a wasteful number, since it uses less digits than its factorization.

1842860881405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12709385423.

The product of its (nonzero) digits is 3932160, while the sum is 55.

The spelling of 1842860881405 in words is "one trillion, eight hundred forty-two billion, eight hundred sixty million, eight hundred eighty-one thousand, four hundred five".