1850974989 has 8 divisors (see below), whose sum is σ = 2469532032. Its totient is φ = 1233200640.

The previous prime is 1850974969. The next prime is 1850974997. The reversal of 1850974989 is 9894790581.

1850974989 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1850974989 - 2¹³ = 1850966797 is a prime.

It is a super-2 number, since 2×1850974989² = 6852216819807100242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850974969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190132 + ... + 199629.

It is an arithmetic number, because the mean of its divisors is an integer number (308691504).

Almost surely, 2^1850974989 is an apocalyptic number.

It is an amenable number.

1850974989 is a deficient number, since it is larger than the sum of its proper divisors (618557043).

1850974989 is a wasteful number, since it uses less digits than its factorization.

1850974989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391347.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The square root of 1850974989 is about 43022.9588591952. The cubic root of 1850974989 is about 1227.8166455246.

The spelling of 1850974989 in words is "one billion, eight hundred fifty million, nine hundred seventy-four thousand, nine hundred eighty-nine".