1850129493 has 16 divisors (see below), whose sum is σ = 2513064960. Its totient is φ = 1210380656.

The previous prime is 1850129483. The next prime is 1850129531. The reversal of 1850129493 is 3949210581.

It is a cyclic number.

It is not a de Polignac number, because 1850129493 - 2⁶ = 1850129429 is a prime.

It is a super-3 number, since 3×1850129493³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850129423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94996 + ... + 112802.

It is an arithmetic number, because the mean of its divisors is an integer number (157066560).

Almost surely, 2^1850129493 is an apocalyptic number.

It is an amenable number.

1850129493 is a deficient number, since it is larger than the sum of its proper divisors (662935467).

1850129493 is a wasteful number, since it uses less digits than its factorization.

1850129493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18456.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1850129493 is about 43013.1316344207. The cubic root of 1850129493 is about 1227.6296679995.

The spelling of 1850129493 in words is "one billion, eight hundred fifty million, one hundred twenty-nine thousand, four hundred ninety-three".