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18750846668 = 224687711667
BaseRepresentation
bin10001011101101000…
…110011011011001100
31210101210000201000112
4101131220303123030
5301400204043133
612340343415152
71232443365311
oct213550633314
953353021015
1018750846668
117a524006a4
1237737544b8
1319ca963558
14c9c43cd08
1574b271648
hex45da336cc

18750846668 has 6 divisors (see below), whose sum is σ = 32813981676. Its totient is φ = 9375423332.

The previous prime is 18750846629. The next prime is 18750846689. The reversal of 18750846668 is 86664805781.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343855830 + ... + 2343855837.

It is an arithmetic number, because the mean of its divisors is an integer number (5468996946).

Almost surely, 218750846668 is an apocalyptic number.

It is an amenable number.

18750846668 is a deficient number, since it is larger than the sum of its proper divisors (14063135008).

18750846668 is a wasteful number, since it uses less digits than its factorization.

18750846668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687711671 (or 4687711669 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 18750846668 in words is "eighteen billion, seven hundred fifty million, eight hundred forty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 4687711667 9375423334 18750846668