1854012840929 has 2 divisors, whose sum is σ = 1854012840930. Its totient is φ = 1854012840928.

The previous prime is 1854012840863. The next prime is 1854012840997. The reversal of 1854012840929 is 9290482104581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1706022597904 + 147990243025 = 1306148^2 + 384695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1854012840929 - 2⁴⁰ = 754501213153 is a prime.

It is a super-2 number, since 2×1854012840929² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1854012840529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 927006420464 + 927006420465.

It is an arithmetic number, because the mean of its divisors is an integer number (927006420465).

Almost surely, 2^{1854012840929} is an apocalyptic number.

It is an amenable number.

1854012840929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1854012840929 is an equidigital number, since it uses as much as digits as its factorization.

1854012840929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 1854012840929 in words is "one trillion, eight hundred fifty-four billion, twelve million, eight hundred forty thousand, nine hundred twenty-nine".