10851779474 has 4 divisors (see below), whose sum is σ = 16277669214. Its totient is φ = 5425889736.

The previous prime is 10851779467. The next prime is 10851779483. The reversal of 10851779474 is 47497715801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10189489249 + 662290225 = 100943^2 + 25735^2 .

It is a super-2 number, since 2×10851779474² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2712944867 + ... + 2712944870.

Almost surely, 2^10851779474 is an apocalyptic number.

10851779474 is a deficient number, since it is larger than the sum of its proper divisors (5425889740).

10851779474 is an equidigital number, since it uses as much as digits as its factorization.

10851779474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425889739.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 10851779474 in words is "ten billion, eight hundred fifty-one million, seven hundred seventy-nine thousand, four hundred seventy-four".