1853245804554 has 20 divisors (see below), whose sum is σ = 4152643377234. Its totient is φ = 617748601464.

The previous prime is 1853245804541. The next prime is 1853245804591. The reversal of 1853245804554 is 4554085423581.

1853245804554 is a `hidden beast` number, since 1 + 8 + 5 + 3 + 2 + 4 + 5 + 80 + 4 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1485315000225 + 367930804329 = 1218735^2 + 606573^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1853245804554.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5719894297 + ... + 5719894620.

Almost surely, 2^{1853245804554} is an apocalyptic number.

1853245804554 is an abundant number, since it is smaller than the sum of its proper divisors (2299397572680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1853245804554 is a wasteful number, since it uses less digits than its factorization.

1853245804554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11439788931 (or 11439788922 counting only the distinct ones).

The product of its (nonzero) digits is 15360000, while the sum is 54.

The spelling of 1853245804554 in words is "one trillion, eight hundred fifty-three billion, two hundred forty-five million, eight hundred four thousand, five hundred fifty-four".