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18742460351 is a prime number
BaseRepresentation
bin10001011101001000…
…110011111110111111
31210101012020122011012
4101131020303332333
5301341032212401
612335443545435
71232312166356
oct213510637677
953335218135
1018742460351
117a486a295a
12377098b27b
1319c8cb8334
14c9b29899d
1574a6668bb
hex45d233fbf

18742460351 has 2 divisors, whose sum is σ = 18742460352. Its totient is φ = 18742460350.

The previous prime is 18742460329. The next prime is 18742460381. The reversal of 18742460351 is 15306424781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18742460351 - 210 = 18742459327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18742460299 and 18742460308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18742460311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9371230175 + 9371230176.

It is an arithmetic number, because the mean of its divisors is an integer number (9371230176).

Almost surely, 218742460351 is an apocalyptic number.

18742460351 is a deficient number, since it is larger than the sum of its proper divisors (1).

18742460351 is an equidigital number, since it uses as much as digits as its factorization.

18742460351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 18742460351 in words is "eighteen billion, seven hundred forty-two million, four hundred sixty thousand, three hundred fifty-one".