851151179485 has 8 divisors (see below), whose sum is σ = 1021391050680. Its totient is φ = 680914520064.

The previous prime is 851151179471. The next prime is 851151179563. The reversal of 851151179485 is 584971151158.

It can be written as a sum of positive squares in 4 ways, for example, as 1572360409 + 849578819076 = 39653^2 + 921726^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 851151179485 - 2¹³ = 851151171293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175320 + ... + 1316449.

It is an arithmetic number, because the mean of its divisors is an integer number (127673881335).

Almost surely, 2^851151179485 is an apocalyptic number.

It is an amenable number.

851151179485 is a deficient number, since it is larger than the sum of its proper divisors (170239871195).

851151179485 is a wasteful number, since it uses less digits than its factorization.

851151179485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605887.

The product of its digits is 2016000, while the sum is 55.

The spelling of 851151179485 in words is "eight hundred fifty-one billion, one hundred fifty-one million, one hundred seventy-nine thousand, four hundred eighty-five".