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18750742201 is a prime number
BaseRepresentation
bin10001011101101000…
…011001111010111001
31210101202211101201101
4101131220121322321
5301400142222301
612340341251401
71232442451612
oct213550317271
953352741641
1018750742201
117a5233a164
123773703b61
1319ca927b39
14c9c412c09
1574b250701
hex45da19eb9

18750742201 has 2 divisors, whose sum is σ = 18750742202. Its totient is φ = 18750742200.

The previous prime is 18750742177. The next prime is 18750742253. The reversal of 18750742201 is 10224705781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12426675625 + 6324066576 = 111475^2 + 79524^2 .

It is a cyclic number.

It is not a de Polignac number, because 18750742201 - 29 = 18750741689 is a prime.

It is not a weakly prime, because it can be changed into another prime (18750742271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9375371100 + 9375371101.

It is an arithmetic number, because the mean of its divisors is an integer number (9375371101).

Almost surely, 218750742201 is an apocalyptic number.

It is an amenable number.

18750742201 is a deficient number, since it is larger than the sum of its proper divisors (1).

18750742201 is an equidigital number, since it uses as much as digits as its factorization.

18750742201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 18750742201 in words is "eighteen billion, seven hundred fifty million, seven hundred forty-two thousand, two hundred one".