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67719012748 = 2216929753187
BaseRepresentation
bin111111000100010111…
…100010000110001100
320110210110021021121021
4333010113202012030
52102142031401443
651035405243524
74615066053022
oct770427420614
9213713237537
1067719012748
11267a0687642
121115ab635a4
1365029cb45a
1433c5ad6712
151b652479ed
hexfc45e218c

67719012748 has 6 divisors (see below), whose sum is σ = 118508272316. Its totient is φ = 33859506372.

The previous prime is 67719012721. The next prime is 67719012791. The reversal of 67719012748 is 84721091776.

It is a junction number, because it is equal to n+sod(n) for n = 67719012695 and 67719012704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8464876590 + ... + 8464876597.

Almost surely, 267719012748 is an apocalyptic number.

It is an amenable number.

67719012748 is a deficient number, since it is larger than the sum of its proper divisors (50789259568).

67719012748 is a wasteful number, since it uses less digits than its factorization.

67719012748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16929753191 (or 16929753189 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 67719012748 in words is "sixty-seven billion, seven hundred nineteen million, twelve thousand, seven hundred forty-eight".

Divisors: 1 2 4 16929753187 33859506374 67719012748