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18769057876 = 2217276015557
BaseRepresentation
bin10001011110101110…
…010001100001010100
31210110001021221002201
4101132232101201110
5301414334323001
612342234014244
71233054234232
oct213656214124
953401257081
1018769057876
117a61709a88
123779877384
131a0166b70a
14ca0a1d952
1574cb6c501
hex45eb91854

18769057876 has 12 divisors (see below), whose sum is σ = 34777960308. Its totient is φ = 8832497792.

The previous prime is 18769057871. The next prime is 18769057903. The reversal of 18769057876 is 67875096781.

It can be written as a sum of positive squares in 2 ways, for example, as 10905624900 + 7863432976 = 104430^2 + 88676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18769057871) 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, 138007711 + ... + 138007846.

It is an arithmetic number, because the mean of its divisors is an integer number (2898163359).

Almost surely, 218769057876 is an apocalyptic number.

It is an amenable number.

18769057876 is a deficient number, since it is larger than the sum of its proper divisors (16008902432).

18769057876 is a wasteful number, since it uses less digits than its factorization.

18769057876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276015578 (or 276015576 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 64.

The spelling of 18769057876 in words is "eighteen billion, seven hundred sixty-nine million, fifty-seven thousand, eight hundred seventy-six".

Divisors: 1 2 4 17 34 68 276015557 552031114 1104062228 4692264469 9384528938 18769057876