6801776554 has 8 divisors (see below), whose sum is σ = 10209502980. Its totient is φ = 3398608896.

The previous prime is 6801776491. The next prime is 6801776561. The reversal of 6801776554 is 4556771086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5281946329 + 1519830225 = 72677^2 + 38985^2 .

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

It is a super-2 number, since 2×6801776554² = 92528328581088229832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6801776498 and 6801776507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135959 + ... + 1141930.

Almost surely, 2^6801776554 is an apocalyptic number.

6801776554 is a deficient number, since it is larger than the sum of its proper divisors (3407726426).

6801776554 is a wasteful number, since it uses less digits than its factorization.

6801776554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279384.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 6801776554 is about 82472.8837497513. The cubic root of 6801776554 is about 1894.7014475721.

The spelling of 6801776554 in words is "six billion, eight hundred one million, seven hundred seventy-six thousand, five hundred fifty-four".