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11578172119 is a prime number
BaseRepresentation
bin10101100100001110…
…01110001011010111
31002212220101002021121
422302013032023113
5142203003001434
65152520224411
7556626560563
oct126207161327
932786332247
1011578172119
114a01638098
1222b160b107
13112694cb27
147bb9b46a3
1547b6e97b4
hex2b21ce2d7

11578172119 has 2 divisors, whose sum is σ = 11578172120. Its totient is φ = 11578172118.

The previous prime is 11578172107. The next prime is 11578172141. The reversal of 11578172119 is 91127187511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11578172119 - 27 = 11578171991 is a prime.

It is a super-2 number, since 2×115781721192 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11578170119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5789086059 + 5789086060.

It is an arithmetic number, because the mean of its divisors is an integer number (5789086060).

Almost surely, 211578172119 is an apocalyptic number.

11578172119 is a deficient number, since it is larger than the sum of its proper divisors (1).

11578172119 is an equidigital number, since it uses as much as digits as its factorization.

11578172119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 43.

The spelling of 11578172119 in words is "eleven billion, five hundred seventy-eight million, one hundred seventy-two thousand, one hundred nineteen".