853777648 has 20 divisors (see below), whose sum is σ = 1675135840. Its totient is φ = 421484544.

The previous prime is 853777643. The next prime is 853777649. The reversal of 853777648 is 846777358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853777643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336465 + ... + 338992.

It is an arithmetic number, because the mean of its divisors is an integer number (83756792).

Almost surely, 2^853777648 is an apocalyptic number.

It is an amenable number.

853777648 is a deficient number, since it is larger than the sum of its proper divisors (821358192).

853777648 is a wasteful number, since it uses less digits than its factorization.

853777648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675544 (or 675538 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 55.

The square root of 853777648 is about 29219.4737803404. The cubic root of 853777648 is about 948.6694755360.

It can be divided in two parts, 85377 and 7648, that added together give a square (93025 = 305²).

The spelling of 853777648 in words is "eight hundred fifty-three million, seven hundred seventy-seven thousand, six hundred forty-eight".