1854374860801 has 4 divisors (see below), whose sum is σ = 1854616543812. Its totient is φ = 1854133177792.

The previous prime is 1854374860799. The next prime is 1854374860817. The reversal of 1854374860801 is 1080684734581.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1440828119025 + 413546741776 = 1200345^2 + 643076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1854374860801 - 2¹ = 1854374860799 is a prime.

It is a super-2 number, since 2×1854374860801² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1854374860841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 120829996 + ... + 120845341.

It is an arithmetic number, because the mean of its divisors is an integer number (463654135953).

Almost surely, 2^{1854374860801} is an apocalyptic number.

It is an amenable number.

1854374860801 is a deficient number, since it is larger than the sum of its proper divisors (241683011).

1854374860801 is an equidigital number, since it uses as much as digits as its factorization.

1854374860801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241683010.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 1854374860801 in words is "one trillion, eight hundred fifty-four billion, three hundred seventy-four million, eight hundred sixty thousand, eight hundred one".