1854040143729 has 16 divisors (see below), whose sum is σ = 2474800625664. Its totient is φ = 1234653810000.

The previous prime is 1854040143677. The next prime is 1854040143773. The reversal of 1854040143729 is 9273410404581.

It is not a de Polignac number, because 1854040143729 - 2⁷ = 1854040143601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1854040143229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12736104 + ... + 12880854.

It is an arithmetic number, because the mean of its divisors is an integer number (154675039104).

Almost surely, 2^{1854040143729} is an apocalyptic number.

It is an amenable number.

1854040143729 is a deficient number, since it is larger than the sum of its proper divisors (620760481935).

1854040143729 is a wasteful number, since it uses less digits than its factorization.

1854040143729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149468.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 1854040143729 in words is "one trillion, eight hundred fifty-four billion, forty million, one hundred forty-three thousand, seven hundred twenty-nine".