1854851479967 has 4 divisors (see below), whose sum is σ = 1855078603536. Its totient is φ = 1854624356400.

The previous prime is 1854851479961. The next prime is 1854851480017. The reversal of 1854851479967 is 7699741584581.

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

It is a cyclic number.

It is not a de Polignac number, because 1854851479967 - 2¹⁸ = 1854851217823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1854851479894 and 1854851479903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1854851479961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113549534 + ... + 113565867.

It is an arithmetic number, because the mean of its divisors is an integer number (463769650884).

Almost surely, 2^{1854851479967} is an apocalyptic number.

1854851479967 is a deficient number, since it is larger than the sum of its proper divisors (227123569).

1854851479967 is an equidigital number, since it uses as much as digits as its factorization.

1854851479967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227123568.

The product of its digits is 609638400, while the sum is 74.

The spelling of 1854851479967 in words is "one trillion, eight hundred fifty-four billion, eight hundred fifty-one million, four hundred seventy-nine thousand, nine hundred sixty-seven".