1853245804555 has 4 divisors (see below), whose sum is σ = 2223894965472. Its totient is φ = 1482596643640.

The previous prime is 1853245804541. The next prime is 1853245804591. The reversal of 1853245804555 is 5554085423581.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1853245804555 - 2⁵ = 1853245804523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1853245804496 and 1853245804505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185324580451 + ... + 185324580460.

It is an arithmetic number, because the mean of its divisors is an integer number (555973741368).

Almost surely, 2^{1853245804555} is an apocalyptic number.

1853245804555 is a deficient number, since it is larger than the sum of its proper divisors (370649160917).

1853245804555 is an equidigital number, since it uses as much as digits as its factorization.

1853245804555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370649160916.

The product of its (nonzero) digits is 19200000, while the sum is 55.

The spelling of 1853245804555 in words is "one trillion, eight hundred fifty-three billion, two hundred forty-five million, eight hundred four thousand, five hundred fifty-five".