851548938 has 16 divisors (see below), whose sum is σ = 1803280320. Its totient is φ = 267152576.

The previous prime is 851548931. The next prime is 851548939. The reversal of 851548938 is 839845158.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (851548931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4174158 + ... + 4174361.

It is an arithmetic number, because the mean of its divisors is an integer number (112705020).

Almost surely, 2^851548938 is an apocalyptic number.

851548938 is an abundant number, since it is smaller than the sum of its proper divisors (951731382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851548938 is a wasteful number, since it uses less digits than its factorization.

851548938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8348541.

The product of its digits is 1382400, while the sum is 51.

The square root of 851548938 is about 29181.3114509955. The cubic root of 851548938 is about 947.8432840162.

The spelling of 851548938 in words is "eight hundred fifty-one million, five hundred forty-eight thousand, nine hundred thirty-eight".