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4919127887 is a prime number
BaseRepresentation
bin1001001010011001…
…11110111101001111
3110200211012120212202
410211030332331033
540033244043022
62132041552115
7232620616502
oct44514767517
913624176782
104919127887
1120a47a0653
12b534a563b
1360518457b
1434944d139
151dbcce592
hex12533ef4f

4919127887 has 2 divisors, whose sum is σ = 4919127888. Its totient is φ = 4919127886.

The previous prime is 4919127841. The next prime is 4919127893. The reversal of 4919127887 is 7887219194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4919127887 - 26 = 4919127823 is a prime.

It is a super-2 number, since 2×49191278872 = 48395638337322169538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4919127827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2459563943 + 2459563944.

It is an arithmetic number, because the mean of its divisors is an integer number (2459563944).

Almost surely, 24919127887 is an apocalyptic number.

4919127887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4919127887 is an equidigital number, since it uses as much as digits as its factorization.

4919127887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 56.

The square root of 4919127887 is about 70136.4946871456. The cubic root of 4919127887 is about 1700.7064983891.

The spelling of 4919127887 in words is "four billion, nine hundred nineteen million, one hundred twenty-seven thousand, eight hundred eighty-seven".