1845517389345 has 24 divisors (see below), whose sum is σ = 3655882067136. Its totient is φ = 843665092128.

The previous prime is 1845517389319. The next prime is 1845517389377. The reversal of 1845517389345 is 5439837155481.

1845517389345 is a `hidden beast` number, since 1 + 8 + 4 + 5 + 517 + 3 + 89 + 34 + 5 = 666.

It is not a de Polignac number, because 1845517389345 - 2⁶ = 1845517389281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2929392367 + ... + 2929392996.

It is an arithmetic number, because the mean of its divisors is an integer number (152328419464).

Almost surely, 2^{1845517389345} is an apocalyptic number.

1845517389345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1845517389345 is a deficient number, since it is larger than the sum of its proper divisors (1810364677791).

1845517389345 is a wasteful number, since it uses less digits than its factorization.

1845517389345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858785381 (or 5858785378 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 1845517389345 in words is "one trillion, eight hundred forty-five billion, five hundred seventeen million, three hundred eighty-nine thousand, three hundred forty-five".